Aanuraj Fasteners Private Limited
Vasai, Palghar, Maharashtra
GST No. 27AARCA3096L1Z0
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Product Details:
| Bolt Diameter | M12 (12 mm) |
| Nominal Length | 70 mm |
| Tensile Strength | 550 MPa |
| Country of Origin | Made in India |
| Materials | Super Duplex 32750 |
| Type | Heavy Hex Nuts |
Premium Super Duplex 32750 Grade Fasteners – Strength Meets Corrosion Resistance ��
Looking for high-performance fasteners for the toughest industrial environments? Aanuraj Fasteners Pvt Ltd proudly offers Super Duplex UNS S32750 fasteners – including studs, bolts, and nuts – manufactured as per DIN, IS, and ISO standards to ensure reliability, precision, and global compatibility.
�� Available Standards:
Studs & Bolts: DIN 931, DIN 933, DIN 976, ISO 4014, ISO 4017, IS 1364
Nuts: DIN 934, DIN 985, ISO 4032, IS 1364, ISO 7040
Custom Sizes: As per drawings & project requirements
�� Chemical Composition (Typical %):
Cr: 24.0 – 26.0
Ni: 6.0 – 8.0
Mo: 3.0 – 5.0
N: 0.24 – 0.32
Fe: Balance
Others: Mn ≤ 1.2, Si ≤ 0.8, P ≤ 0.035, S ≤ 0.02
�� Mechanical Properties:
Tensile Strength: ≥ 795 MPa
Yield Strength (0.2% proof): ≥ 550 MPa
Elongation: ≥ 15%
Hardness: ≤ 32 HRC
Impact Energy: Excellent toughness even at sub-zero temperatures
�� Key Benefits:
Exceptional pitting & crevice corrosion resistance in seawater and chloride-rich environments
Superior strength-to-weight ratio compared to austenitic stainless steel
Outstanding fatigue & stress corrosion cracking resistance
Ideal for marine, oil & gas, desalination, chemical processing, and offshore structures
�� Order your Super Duplex 32750 fasteners today for unmatched durability and performance!
Keywords: super duplex fasteners, super duplex 32750 bolts, super duplex studs, super duplex nuts, UNS S32750, DIN 934 nuts, DIN 933 bolts, ISO 4014 bolts, IS 1364 studs, super duplex 2507 fasteners, corrosion resistant fasteners, high strength stainless steel fasteners, marine grade fasteners, offshore fasteners, chemical plant fasteners, Aanuraj Fasteners Pvt Ltd, high nickel fasteners, duplex stainless steel bolts, super duplex nuts manufacturer India
Hashtags: #superduplexfasteners, #superduplex32750, #superduplexbolts, #superduplexnuts, #UNSS32750, #superduplexstuds, #DIN934, #DIN933, #ISO4014, #IS1364, #offshorefasteners, #marinefasteners, #chemicalplantfasteners, #corrosionresistantfasteners, #aanurajfasteners, #highnickelfasteners, #duplexstainlesssteel
Product Details:
| Minimum Order Quantity | 100 Piece |
| Diameter | 76.2 |
| Material Grade | Stainless Steel |
| Thickness | 76.2MM |
| Features | Corossion Resitant |
| Size | 3"X8UN |
| Country of Origin | Made in India |
“Premium ASTM A194 Grade B8M Heavy Hex Nuts – Made from SS 316 for superior corrosion resistance and strength.
Perfect for petrochemical, marine, and offshore applications.
Trusted by leading industries, supplied with full traceability by Aanuraj Fasteners Pvt Ltd.”
Product Details:
| Minimum Order Quantity | 24 Piece |
| Nominal Nut Diameter | 70 mm |
| Material Grade | Stainless Steel 316 |
| Thickness | 70MM |
| Features | Corossion Resistant |
| Size | 2.3/4"X8UN |
| Country of Origin | Made in India |
“Premium ASTM A194 Grade B8M Heavy Hex Nuts – Made from SS 316 for superior corrosion resistance and strength.
Perfect for petrochemical, marine, and offshore applications.
Trusted by leading industries, supplied with full traceability by Aanuraj Fasteners Pvt Ltd.”
Product Details:
| Nominal Nut Diameter | 1/2" |
| Material Grade | Stainless Steel 316 |
| Features | Corossion Resitant |
| Country of Origin | Made in India |
| Specification | ASME B 18.2.2 |
| Diameter | 1/2" xUNC |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Nominal Nut Diameter | 5/8" |
| Material Grade | Stainless Steel 316 B8M |
| Features | Corrossion Resitant |
| Country of Origin | Made in India |
| Daimeter | 5/8" x UNC |
| Dimensions | ASME B 18.2.2 |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Nominal Nut Diameter | 20 mm |
| Material Grade | Stainless Steel 316 B8M |
| Features | Heavy Hex Nuts |
| Country of Origin | Made in India |
| Specification | ASME B 18.2.2 |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Nominal Nut Diameter | 22 mm |
| Material Grade | ASTM A194 GR.B8M / SS 316 |
| Features | Heavy Hex Nuts |
| Country of Origin | Made in India |
| Specification | ASME B 18.2.2 |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 25 mm |
| Material Grade | Stainless Steel Gr.316 |
| Thickness | 25.4MM |
| Features | Heavy Hex Nuts |
| Size | 1"x8UN |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 28MM |
| Material Grade | Stainless Steel Gr. 316 |
| Thickness | 28MM |
| Features | Carlsen Resigns |
| Size | 1.1/8"X8UN |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Nominal Nut Diameter | 32 mm |
| Material Grade | Stainless Steel |
| Features | Corossion Resitant |
| Country of Origin | Made in India |
| Size | 1.1/4"x8UN |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 36 mm |
| Thickness | 35mm |
| Material Grade | Stainless Steel |
| Size | 1.3/8"X8UN |
| Features | Corossion Resitant |
| Country of Origin | Made in India |
| Type | Heavy Hex Nuts |
| Dia. | 1.3/8" |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 40 mm |
| Material Grade | Stainless Steel 316 / ASTM A194 GR.8M |
| Thickness | 41MM |
| Features | Corossion Resitant |
| Size | 1.5/8"X8UN |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Minimum Order Quantity | 24 Piece |
| Diameter | 65MM |
| Nominal Nut Diameter | 60 mm |
| Thickness | 63.5MM |
| Size | 2.1/2"X8UN |
| Country of Origin | Made in India |
| Type | Heavy Hex nuts |
“Premium ASTM A194 Grade B8M Heavy Hex Nuts – Made from SS 316 for superior corrosion resistance and strength.
Perfect for petrochemical, marine, and offshore applications.
Trusted by leading industries, supplied with full traceability by Aanuraj Fasteners Pvt Ltd.”
Product Details:
| Nominal Nut Diameter | 50 mm |
| Material Grade | Stainless Steel |
| Thickness | 50.8mm |
| Features | Corossion Resitant |
| Size | 2"x8UN |
| Country of Origin | Made in India |
“Premium ASTM A194 Grade B8M Heavy Hex Nuts – Made from SS 316 for superior corrosion resistance and strength.
Perfect for petrochemical, marine, and offshore applications.
Trusted by leading industries, supplied with full traceability by Aanuraj Fasteners Pvt Ltd.”
Product Details:
| Nominal Nut Diameter | 45 mm |
| Material Grade | Stainless Steel Gr.316 |
| Features | Carlsen Resigns |
| Size | 1.3/4"x8UN |
| Country of Origin | Made in India |
“Premium ASTM A194 Grade B8M Heavy Hex Nuts – Made from SS 316 for superior corrosion resistance and strength.
Perfect for petrochemical, marine, and offshore applications.
Trusted by leading industries, supplied with full traceability by Aanuraj Fasteners Pvt Ltd.”
Product Details:
| Nominal Nut Diameter | 45 mm |
| Material Grade | Stainless Steel Gr.316 |
| Size | 1.7/8"X8UN |
| Features | Carlsen Resigns |
| Country of Origin | Made in India |
| Type | Heavy Hex Nuts |
“Premium ASTM A194 Grade B8M Heavy Hex Nuts – Made from SS 316 for superior corrosion resistance and strength.
Perfect for petrochemical, marine, and offshore applications.
Trusted by leading industries, supplied with full traceability by Aanuraj Fasteners Pvt Ltd.”
Product Details:
| Diameter | 12 mm |
| Material Grade | Stainless Steel |
| Features | Corossion Resitant |
| Size | M12X1.75P |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 16 mm |
| Material Grade | Stainless Steel |
| Features | Corossion Resitant |
| Size | M16X2P |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Nominal Nut Diameter | 22 mm |
| Thickness | 22MM |
| Material Grade | Stainless Steel |
| Size | M22X2.5P |
| Features | Corossion Resitant |
| Country of Origin | Made in India |
| Type | Heavy H=D Nuts |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 20 mm |
| Material Grade | Stainless Steel |
| Thickness | 20mm |
| Features | Corossion Resitant |
| Size | M20 |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Nominal Nut Diameter | 24 mm |
| Material Grade | Stainless Steel |
| Thickness | 24mm |
| Features | Corossion Resitant |
| Size | M24X3P |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 27mm |
| Material Grade | Stainless Steel |
| Thickness | 27mm |
| Features | Corossion Resitant |
| Size | M27 |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Nominal Nut Diameter | 30 mm |
| Material Grade | Stainless Steel |
| Thickness | 45MM |
| Features | Corossion Resitant |
| Size | M30X3.5P |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 32 mm |
| Material Grade | Stainless Steel |
| Features | Corossion Resitant |
| Size | M33 |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Nominal Nut Diameter | 36 mm |
| Material Grade | Stainless Steel |
| Thickness | 36MM |
| Features | Corossion Resitant |
| Size | M36 |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 40 mm |
| Material Grade | Stainless Steel |
| Features | Corossion Resitant |
| Size | M39 |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 42mm |
| Material Grade | Stainless Steel |
| Features | Corossion Resitant |
| Size | M42 |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Nominal Nut Diameter | 45 mm |
| Material Grade | Stainless Steel |
| Thickness | 45MM |
| Features | Corossion Resitant |
| Size | M45 |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 52mm |
| Material Grade | Stainless Steel |
| Features | Corossion Resitant |
| Size | M52 |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 56mm |
| Material Grade | Stainless Steel |
| Features | Corossion Resitant |
| Size | M56 |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 65 |
| Material Grade | Stainless Steel |
| Thickness | 65MM |
| Size | M65 |
| Features | Corossion Resitant |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 72mm |
| Thickness | 72mm |
| Material Grade | Stainless Steel |
| Size | M72 |
| Features | Corossion Resitant |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 80 mm |
| Nominal Nut Diameter | 80 mm |
| Material Grade | Stainless Steel |
| Thickness | 80 |
| Features | Corossion Resitant |
| Size | M80 |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Product Details:
| Diameter | 100 mm |
| Nominal Nut Diameter | 100 mm |
| Thickness | 100MM |
| Material Grade | Stainless Steel |
| Size | M100 |
| Features | Corossion Resitant |
| Country of Origin | Made in India |
Heavy Hex Nuts are high-strength, larger-dimension nuts designed for use in heavy-duty bolting applications.
Manufactured as per ASME B18.2.2 (inch series) and ASME B18.2.4.6M (metric series).
Material: Stainless Steel 316, conforming to ASTM A194 Grade B8M specifications.
Ideal for high-temperature, corrosive environments, and critical bolted joints.
Inch Sizes: ASME B18.2.2 – Heavy Hex Nuts (Unified Inch Screw Threads – UNC, UNF, 8UN).
Metric Sizes: ASME B18.2.4.6M – Heavy Hex Nuts (Metric Coarse & Fine Pitch Threads).
Material Specification: ASTM A194 – Nuts for High-Pressure/High-Temperature Service.
Grade: B8M (Type 316 Stainless Steel, carbide solution treated).
Base Material: Austenitic Stainless Steel 316.
Alloying Elements: Chromium 16–18%, Nickel 10–14%, Molybdenum 2–3%.
Corrosion Resistance: Superior resistance to chlorides, acids, and marine environments.
Heat Treatment: Solution annealed at 1,900°F min and water quenched.
Tensile Strength (min): 75 ksi (515 MPa)
Yield Strength (min): 30 ksi (205 MPa)
Proof Load: 70 ksi (485 MPa)
Elongation: 30% min
Hardness: 223 HBW max (95 HRB max)
Heavy Hex Nuts have a wider across-flats (AF) and thicker height compared to standard hex nuts for greater load-bearing capacity.
Example – Inch Size (ASME B18.2.2):
1" UNC Heavy Hex Nut → Across Flats: 1.50", Thickness: 0.94".
Example – Metric Size (ASME B18.2.4.6M):
M24 Coarse Pitch → Across Flats: 36 mm, Thickness: 21 mm.
Inch Series: UNC (Coarse), UNF (Fine), 8UN (for large diameters).
Metric Series: Coarse Pitch, Fine Pitch.
Threads per ASME B1.1 (inch) and ASME B1.13M (metric).
Right-hand threads standard; left-hand threads available on request.
High-pressure piping systems (Oil, Gas, Petrochemical).
Heat exchangers and pressure vessels.
Marine and offshore structures.
Chemical process equipment.
Power generation plants.
Flange assemblies where high preload is critical.
Excellent resistance to pitting and crevice corrosion due to Molybdenum.
Retains strength at elevated temperatures.
Long service life in saltwater and acidic environments.
Non-magnetic in annealed condition.
Compliant with NACE MR0175 for sour service (when requested).
Dimensional Inspection as per ASME standards.
Mechanical Testing: Tensile, hardness, proof load.
Chemical Analysis: To confirm ASTM A194 Grade B8M compliance.