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    200 Products

    Hex Nuts for High-Pressure Applications
    3D CAD models available

    These nuts are hardened, so they maintain their strength under high pressure and temperature. Pair them with ASTM A193 screws to fasten critical components, such as valves and flanges, in pressure tanks, boilers, and heat exchangers.
    Corrosion-Resistant Stainless Steel
    Image of Product. Front orientation. Hex Nuts. Hex Nuts for High-Pressure Applications.
    Super-Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Super-Corrosion-Resistant 316 Stainless Steel
    5/16"-18
    1/2"17/64"ASTM Grade 8M
    ASTM A194
    5000000000000000
    3/8"-16
    9/16"21/64"ASTM Grade 8M
    ASTM A194
    10000000000000
    1/2"-13
    3/4"7/16"ASTM Grade 8M
    ASTM A194
    10000000000000
    5/8"-11
    15/16"35/64"ASTM Grade 8M
    ASTM A194
    10000000000000
    3/4"-10
    1 1/8"41/64"ASTM Grade 8M
    ASTM A194
    100000000000000
    1"-8
    1 1/2"55/64"ASTM Grade 8M
    ASTM A194
    100000000000000
     

    Heavy-Profile Hex Nuts
    3D CAD models available

    About 10% wider and taller than standard-profile hex nuts, these handle heavier loads by distributing them over a larger area.
    Extreme-Strength Steel
    Image of Product. Front orientation. Hex Nuts. Heavy-Profile Hex Nuts.
    Rated Grade 9 or Class 12, these nuts are about 20% stronger than high-strength steel nuts. They are strong enough to secure components in heavy machinery, such as bulldozers and excavators. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Zinc-Yellow-Chromate-Plated Steel—With a more durable finish than clear zinc plating, these nuts are suitable for most wet and outdoor environments. However, they won't hold up to the harsh chemicals that stainless steel can.
    Black-Oxide Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Hot-Dipped Galvanized Steel—Combines the strength of steel with the rust resistance of stainless steel. These nuts are an economical alternative to 18-8 stainless steel in wet and outdoor environments, but they won't hold up to salt water and chemicals. The galvanized finish is thicker than other types of coatings, so the threads may be more likely to stick during installation. Use with other hot-dipped galvanized fasteners.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    PTFE-Coated Steel—A slippery PTFE coating prevents these nuts from becoming stuck during installation. They resist rust in wet and outdoor environments, however they're not recommended for prolonged exposure since the coating can wear off.
    Thread Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Yellow-Chromate-Plated Steel
    1/4"-20
    1/2"15/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194100000000000000000
    1/4"-28
    1/2"15/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1945000000000000000
    5/16"-18
    9/16"19/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194500000000000000
    5/16"-24
    9/16"19/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194250000000000000
    3/8"-16
    11/16"23/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1945000000000000000
    3/8"-24
    11/16"23/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1942500000000000000
    1/2"-13
    7/8"31/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1942500000000000000
    1/2"-20
    7/8"31/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194100000000000000
    5/8"-11
    1 1/16"39/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1941000000000000000
    5/8"-18
    1 1/16"39/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1941000000000000000
    3/4"-10
    1 1/4"47/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1941000000000000000
    3/4"-16
    1 1/4"47/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1941000000000000000
    1"-8
    1 5/8"63/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194500000000000000
    1"-14
    1 5/8"63/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
     
    Black-Oxide Steel
    1/4"-20
    1/2"15/64"ASTM Grade 2H
    ASTM A194
    2500000000000000
    5/16"-18
    9/16"19/64"ASTM Grade 2H
    ASTM A194
    100000000000000
    3/8"-16
    11/16"23/64"ASTM Grade 2H
    ASTM A194
    100000000000000
    7/16"-14
    3/4"27/64"ASTM Grade 2H
    ASTM A194
    100000000000000
    1/2"-13
    7/8"31/64"ASTM Grade 2H
    ASTM A194
    100000000000000
    5/8"-11
    1 1/16"39/64"ASTM Grade 2H
    ASTM A194
    50000000000000
    3/4"-10
    1 1/4"47/64"ASTM Grade 2H
    ASTM A194
    50000000000000
    7/8"-9
    1 7/16"55/64"ASTM Grade 2H
    ASTM A194
    10000000000000
    1"-8
    1 5/8"63/64"ASTM Grade 2H
    ASTM A194
    10000000000000
     
    Hot-Dipped Galvanized Steel
    1/4"-20
    1/2"15/64"ASTM Grade 2H
    ASTM A194
    5000000000000000
    3/8"-16
    11/16"23/64"ASTM Grade 2H
    ASTM A194
    5000000000000000
    1/2"-13
    7/8"31/64"ASTM Grade 2H
    ASTM A194
    2500000000000000
    5/8"-11
    1 1/16"39/64"ASTM Grade 2H
    ASTM A194
    1000000000000000
    3/4"-10
    1 1/4"47/64"ASTM Grade 2H
    ASTM A194
    1000000000000000
    7/8"-9
    1 7/16"55/64"ASTM Grade 2H
    ASTM A194
    500000000000000
    1"-8
    1 5/8"63/64"ASTM Grade 2H
    ASTM A194
    500000000000000
    1 1/8"-7
    1 13/16"1 7/64"ASTM Grade 2H
    ASTM A194
    10000000000000
    1 1/8"-8
    1 13/16"1 7/64"ASTM Grade 2H
    ASTM A194
    10000000000000
    1 1/4"-7
    2"1 7/32"ASTM Grade 2H
    ASTM A194
    10000000000000
    1 1/4"-8
    2"1 7/32"ASTM Grade 2H
    ASTM A194
    10000000000000
    1 3/8"-6
    2 3/16"1 11/32"ASTM Grade 2H
    ASTM A194
    10000000000000
    1 1/2"-6
    2 3/8"1 15/32"ASTM Grade 2H
    ASTM A194
    100000000000000
    1 3/4"-5
    2 3/4"1 23/32"ASTM Grade 2H
    ASTM A194
    100000000000000
    2"-4 1/2
    3 1/8"1 31/32"ASTM Grade 2H
    ASTM A194
    100000000000000
     
    Steel
    1/4"-20
    1/2"15/64"ASTM Grade 2H
    ASTM A194
    10000000000000000
    1/4"-28
    1/2"15/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1945000000000000000
    5/16"-18
    9/16"19/64"ASTM Grade 2H
    ASTM A194
    5000000000000000
    5/16"-24
    9/16"19/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1945000000000000000
    3/8"-16
    11/16"23/64"ASTM Grade 2H
    ASTM A194
    5000000000000000
    3/8"-24
    11/16"23/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194250000000000000
    7/16"-14
    3/4"27/64"ASTM Grade 2H
    ASTM A194
    2500000000000000
    7/16"-20
    3/4"27/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1942500000000000000
    1/2"-13
    7/8"31/64"ASTM Grade 2H
    ASTM A194
    2500000000000000
    1/2"-20
    7/8"31/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1942500000000000000
    9/16"-12
    15/16"35/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194100000000000000
    5/8"-11
    1 1/16"39/64"ASTM Grade 2H
    ASTM A194
    1000000000000000
    5/8"-18
    1 1/16"39/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1942500000000000000
    3/4"-10
    1 1/4"47/64"ASTM Grade 2H
    ASTM A194
    1000000000000000
    3/4"-16
    1 1/4"47/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1941000000000000000
    7/8"-9
    1 7/16"55/64"ASTM Grade 2H
    ASTM A194
    1000000000000000
    7/8"-14
    1 7/16"55/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1941000000000000000
    1"-8
    1 5/8"63/64"ASTM Grade 2H
    ASTM A194
    500000000000000
    1"-12
    1 5/8"63/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    1"-14
    1 5/8"63/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194500000000000000
    1 1/8"-7
    1 13/16"1 7/64"ASTM Grade 2H
    ASTM A194
    10000000000000
    1 1/8"-8
    1 13/16"1 7/64"ASTM Grade 2H
    ASTM A194
    10000000000000
    1 1/8"-12
    1 13/16"1 7/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    1 1/4"-7
    2"1 7/32"ASTM Grade 2H
    ASTM A194
    10000000000000
    1 1/4"-8
    2"1 7/32"ASTM Grade 2H
    ASTM A194
    10000000000000
    1 1/4"-12
    2"1 7/32"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    1 3/8"-6
    2 3/16"1 11/32"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    1 3/8"-8
    2 3/16"1 11/32"ASTM Grade 2H
    ASTM A194
    10000000000000
    1 3/8"-12
    2 3/16"1 11/32"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    1 1/2"-6
    2 3/8"1 15/32"ASTM Grade 2H
    ASTM A194
    10000000000000
    1 1/2"-8
    2 3/8"1 15/32"ASTM Grade 2H
    ASTM A194
    10000000000000
    1 1/2"-12
    2 3/8"1 15/32"ASTM Grade 2H
    ASTM A194
    10000000000000
    1 5/8"-8
    2 9/16"1 19/32"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    1 3/4"-5
    2 3/4"1 23/32"ASTM Grade 2H
    ASTM A194
    100000000000000
    1 3/4"-8
    2 3/4"1 23/32"ASTM Grade 2H
    ASTM A194
    100000000000000
    1 7/8"-8
    2 15/16"1 27/32"ASTM Grade 2H
    ASME B18.2.2, ASTM A194100000000000000
    2"-4 1/2
    3 1/8"1 31/32"ASTM Grade 2H
    ASTM A194
    100000000000000
    2"-8
    3 1/8"1 31/32"ASTM Grade 2H
    ASTM A194
    100000000000000
    2 1/4"-4 1/2
    3 1/2"2 13/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194100000000000000
    2 1/4"-8
    3 1/2"2 13/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194100000000000000
    2 1/2"-4
    3 7/8"2 29/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194100000000000000
    M10 × 1.5 mm19 mm12 mmASTM Grade 2H
    ASTM A194
    50000000000000
    M12 × 1.75 mm21 mm12 mmASTM Grade 2H
    ASTM A194, DIN 691550000000000000
    M14 × 2 mm24 mm14 mmASTM Grade 2H
    ASTM A194, DIN 691550000000000000
    M16 × 2 mm27 mm17 mmASTM Grade 2H
    ASTM A194, DIN 691550000000000000
    M18 × 2.5 mm30 mm19 mmASTM Grade 2H
    ASTM A194, DIN 6915500000000000000
    M20 × 2.5 mm33 mm20 mmASTM Grade 2H
    ASTM A194, DIN 6915500000000000000
    M22 × 2.5 mm36 mm23 mmASTM Grade 2H
    ASTM A194, DIN 691510000000000000
    M24 × 3 mm41 mm24 mmASTM Grade 2H
    ASTM A194, DIN 691510000000000000
    M27 × 3 mm46 mm27 mmASTM Grade 2H
    ASTM A194, DIN 691510000000000000
    M30 × 3.5 mm50 mm30 mmASTM Grade 2H
    ASTM A194, DIN 6915100000000000000
    M33 × 3.5 mm55 mm33 mmASTM Grade 2H
    ASTM A194, DIN 6915100000000000000
    M36 × 3 mm60 mm36 mmASTM Grade 2H
    ASTM A194, DIN 6915100000000000000
    M36 × 4 mm60 mm36 mmASTM Grade 2H
    ASTM A194, DIN 6915100000000000000
    M39 × 4 mm65 mm39 mmASTM Grade 2H
    ASTM A194
    100000000000000
    M42 × 3 mm70 mm42 mmASTM Grade 2H
    ASTM A194
    100000000000000
    M42 × 4.5 mm70 mm42 mmASTM Grade 2H
    ASTM A194
    100000000000000
    M45 × 4.5 mm75 mm45 mmASTM Grade 2H
    ASTM A194
    100000000000000
    M48 × 3 mm80 mm48 mmASTM Grade 2H
    ASTM A194
    100000000000000
    M48 × 5 mm80 mm48 mmASTM Grade 2H
    ASTM A194
    100000000000000
    M52 × 5 mm85 mm52 mmASTM Grade 2H
    ASTM A194
    100000000000000
    M56 × 5.5 mm90 mm56 mmASTM Grade 2H
    ASTM A194
    100000000000000
    M64 × 6 mm100 mm64 mmASTM Grade 2H
    ASTM A194
    100000000000000
     
    Blue PTFE-Coated Steel
    1/2"-13
    7/8"31/64"ASTM Grade 2H
    ASTM A194
    2500000000000000
    5/8"-11
    1 1/16"39/64"ASTM Grade 2H
    ASTM A194
    1000000000000000
    3/4"-10
    1 1/4"47/64"ASTM Grade 2H
    ASTM A194
    1000000000000000
    7/8"-9
    1 7/16"55/64"ASTM Grade 2H
    ASTM A194
    500000000000000
    1"-8
    1 5/8"63/64"ASTM Grade 2H
    ASTM A194
    500000000000000
    1 1/8"-8
    1 13/16"1 7/64"ASTM Grade 2H
    ASTM A194
    10000000000000
    1 1/4"-8
    2"1 7/32"ASTM Grade 2H
    ASTM A194
    100000000000000
    1 3/8"-8
    2 3/16"1 11/32"ASTM Grade 2H
    ASTM A194
    100000000000000
    1 1/2"-8
    2 3/8"1 15/32"ASTM Grade 2H
    ASTM A194
    100000000000000
    1 3/4"-8
    2 3/4"1 23/32"ASTM Grade 2H
    ASTM A194
    100000000000000
    1 7/8"-8
    2 15/16"1 27/32"ASTM Grade 2H
    ASTM A194
    100000000000000
    2"-8
    3 1/8"1 31/32"ASTM Grade 2H
    ASTM A194
    100000000000000
     

    Heavy-Profile Hex Nuts for High-Pressure Applications
    3D CAD models available

    These nuts are hardened, so they maintain their strength under high pressure and temperature. Pair them with ASTM A193 screws to fasten critical components, such as valves and flanges, in pressure tanks, boilers, and heat exchangers. About 10% wider and taller than standard-profile hex nuts, these handle heavier loads by distributing them over a larger area.
    High-Strength Steel
    Image of Product. Bottom orientation. Hex Nuts. Heavy-Profile Hex Nuts for High-Pressure Applications.
    Rated Grade 7 or Grade 8, these nuts are about 25% stronger than medium-strength steel nuts. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.
    Black-Oxide Steel—Typically chosen for their appearance, these nuts have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    3/8"-16
    11/16"23/64"ASTM Grade 7
    ASTM A194
    1000000000000000000
    1/2"-13
    7/8"31/64"ASTM Grade 7
    ASTM A194
    100000000000000000
    5/8"-11
    1 1/16"39/64"ASTM Grade 7
    ASTM A194
    50000000000000000
    3/4"-10
    1 1/4"47/64"ASTM Grade 7
    ASTM A194
    50000000000000000
    7/8"-9
    1 7/16"55/64"ASTM Grade 7
    ASTM A194
    50000000000000000
    1"-8
    1 5/8"63/64"ASTM Grade 7
    ASTM A194
    25000000000000000
    1 1/8"-7
    1 13/16"1 7/64"ASTM Grade 7
    ASTM A194
    25000000000000000
    1 1/8"-8
    1 13/16"1 7/64"ASTM Grade 7
    ASTM A194
    25000000000000000
    1 1/4"-7
    2"1 7/32"ASTM Grade 7
    ASTM A194
    25000000000000000
    1 1/4"-8
    2"1 7/32"ASTM Grade 7
    ASTM A194
    25000000000000000
     
    Black-Oxide Steel
    1/2"-13
    7/8"31/64"ASTM Grade 7
    ASTM A194
    100000000000000000
    5/8"-11
    1 1/16"39/64"ASTM Grade 7
    ASTM A194
    50000000000000000
    3/4"-10
    1 1/4"47/64"ASTM Grade 7
    ASTM A194
    50000000000000000
     
    Steel
    1/4"-20
    1/2"15/64"ASTM Grade 7
    ASTM A194
    100000000000000
    3/8"-16
    11/16"23/64"ASTM Grade 7
    ASTM A194
    100000000000000
    1/2"-13
    7/8"31/64"ASTM Grade 7
    ASTM A194
    1000000000000000
    5/8"-11
    1 1/16"39/64"ASTM Grade 7
    ASTM A194
    1000000000000000
    3/4"-10
    1 1/4"47/64"ASTM Grade 7
    ASTM A194
    1000000000000000
    7/8"-9
    1 7/16"55/64"ASTM Grade 7
    ASTM A194
    50000000000000
    1"-8
    1 5/8"63/64"ASTM Grade 7
    ASTM A194
    500000000000000
    1 1/8"-7
    1 13/16"1 7/64"ASTM Grade 7
    ASTM A194
    10000000000000
    1 1/8"-8
    1 13/16"1 7/64"ASTM Grade 7
    ASTM A194
    10000000000000
    1 1/4"-7
    2"1 7/32"ASTM Grade 7
    ASTM A194
    10000000000000
    1 1/4"-8
    2"1 7/32"ASTM Grade 7
    ASTM A194
    10000000000000
     
    Corrosion-Resistant Stainless Steel
    Image of Product. Bottom orientation. Hex Nuts. Heavy-Profile Hex Nuts for High-Pressure Applications.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these nuts resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Super-Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these nuts won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Specs.
    Met
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
    1/4"-20
    1/2"15/64"ASTM Grade 8
    ASTM A194
    25000000000000000
    1/4"-28
    1/2"15/64"ASTM Grade 8
    ASTM A194
    100000000000000
    5/16"-18
    9/16"19/64"ASTM Grade 8
    ASTM A194
    100000000000000
    5/16"-24
    9/16"19/64"ASTM Grade 8
    ASTM A194
    100000000000000
    3/8"-16
    11/16"23/64"ASTM Grade 8
    ASTM A194
    1000000000000000
    3/8"-24
    11/16"23/64"ASTM Grade 8
    ASTM A194
    100000000000000
    7/16"-14
    3/4"27/64"ASTM Grade 8
    ASTM A194
    100000000000000
    7/16"-20
    3/4"27/64"ASTM Grade 8
    ASTM A194
    100000000000000
    1/2"-13
    7/8"31/64"ASTM Grade 8
    ASTM A194
    1000000000000000
    1/2"-20
    7/8"31/64"ASTM Grade 8
    ASTM A194
    100000000000000
    5/8"-11
    1 1/16"39/64"ASTM Grade 8
    ASTM A194
    500000000000000
    5/8"-18
    1 1/16"39/64"ASTM Grade 8
    ASTM A194
    100000000000000
    3/4"-10
    1 1/4"47/64"ASTM Grade 8
    ASTM A194
    10000000000000
    3/4"-16
    1 1/4"47/64"ASTM Grade 8
    ASTM A194
    100000000000000
    7/8"-9
    1 7/16"55/64"ASTM Grade 8
    ASTM A194
    10000000000000
    1"-8
    1 5/8"63/64"ASTM Grade 8
    ASTM A194
    100000000000000
    1"-14
    1 5/8"63/64"ASTM Grade 8
    ASTM A194
    100000000000000
    1 1/8"-7
    1 13/16"1 7/64"ASTM Grade 8
    ASTM A194
    100000000000000
    1 1/4"-7
    2"1 7/32"ASTM Grade 8
    ASTM A194
    100000000000000
     
    Super-Corrosion-Resistant 316 Stainless Steel
    1/4"-20
    1/2"1/4"ASTM Grade 8M
    ASTM A194
    500000000000000
    5/16"-18
    9/16"19/64"ASTM Grade 8M
    ASTM A194
    100000000000000
    3/8"-16
    11/16"23/64"ASTM Grade 8M
    ASTM A194
    50000000000000
    7/16"-14
    3/4"27/64"ASTM Grade 8M
    ASTM A194
    50000000000000
    1/2"-13
    7/8"31/64"ASTM Grade 8M
    ASTM A194
    50000000000000
    5/8"-11
    1 1/16"39/64"ASTM Grade 8M
    ASTM A194
    10000000000000
    3/4"-10
    1 1/4"47/64"ASTM Grade 8M
    ASTM A194
    10000000000000
    7/8"-9
    1 7/16"55/64"ASTM Grade 8M
    ASTM A194
    10000000000000
    1"-8
    1 5/8"63/64"ASTM Grade 8M
    ASTM A194
    10000000000000
    1 1/8"-7
    1 13/16"1 9/64"ASTM Grade 8M
    ASTM A194
    10000000000000
    1 1/8"-8
    1 13/16"1 9/64"ASTM Grade 8M
    ASTM A194
    10000000000000
    1 1/4"-7
    2"1 1/4"ASTM Grade 8M
    ASTM A194
    10000000000000
    1 1/4"-8
    2"1 1/4"ASTM Grade 8M
    ASTM A194
    10000000000000
    1 1/2"-6
    2 3/8"1 1/2"ASTM Grade 8M
    ASTM A194
    100000000000000
    1 1/2"-8
    2 3/8"1 1/2"ASTM Grade 8M
    ASTM A194
    100000000000000
    1 5/8"-8
    2 9/16"1 5/8"ASTM Grade 8M
    ASTM A194
    100000000000000
    1 3/4"-8
    2 3/4"1 3/4"ASTM Grade 8M
    ASTM A194
    100000000000000
    2"-8
    3 1/8"2 1/64"ASTM Grade 8M
    ASTM A194
    100000000000000
     

    Thin-Heavy-Profile Hex Nuts
    3D CAD models available

    About half the height of standard-profile hex nuts and 10% wider, these fit in spaces with low clearance and handle heavier loads by distributing them over a larger area. You can also use them as jam nuts by threading them against another hex nut to hold it in place.
    Extreme-Strength Steel
    Image of Product. Front orientation. Hex Nuts. Thin-Heavy-Profile Hex Nuts.
    Rated Grade 9 or Class 12, these nuts are about 20% stronger than high-strength steel nuts. They are strong enough to secure components in heavy machinery, such as bulldozers and excavators. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.
    Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.
    Steel—Best for dry environments since moisture will cause these nuts to rust.
    Thread
    Size
    Wd.
    Ht.
    Fastener Strength
    Grade/Class
    Specs. Met
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
    1/4"-20
    1/2"11/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A1945000000000000000
    5/16"-18
    9/16"13/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194500000000000000
    3/8"-16
    11/16"15/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194500000000000000
    1/2"-13
    7/8"19/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194500000000000000
    5/8"-11
    1 1/16"23/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194500000000000000
    3/4"-10
    1 1/4"27/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194500000000000000
     
    Steel
    1/4"-20
    1/2"11/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    3/8"-16
    11/16"15/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194500000000000000
    7/16"-14
    3/4"17/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    1/2"-13
    7/8"19/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A194500000000000000
    5/8"-11
    1 1/16"23/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    3/4"-10
    1 1/4"27/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    7/8"-9
    1 7/16"31/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    1"-8
    1 5/8"35/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    1 1/8"-7
    1 13/16"39/64"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    1 1/4"-7
    2"23/32"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    1 3/8"-6
    2 3/16"25/32"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    1 1/2"-6
    2 3/8"27/32"ASTM Grade 2H
    ASME B18.2.2, ASTM A19410000000000000
    1 3/4"-5
    2 3/4"31/32"ASTM Grade 2H
    ASME B18.2.2, ASTM A194100000000000000
    2"-4 1/2
    3 1/8"1 3/32"ASTM Grade 2H
    ASME B18.2.2, ASTM A194100000000000000
     
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