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    114 Products
    About Hex Head Screws and Bolts
    industrial info icon

    Choose a hex head fastener with the right threading, thread size, material, and strength for your equipment.

    High-Pressure Stainless Steel Heavy Hex Head Screws

    Image of Product. Front orientation. Hex Head Screws. High-Pressure Stainless Steel Heavy Hex Head Screws, Fully Threaded.

    Fully Threaded

    Image of Product. Front orientation. Contains Annotated. Hex Head Screws. High-Pressure Stainless Steel Heavy Hex Head Screws, Partially Threaded.

    Partially

    Threaded

    Resist corrosion and meet ASTM standards for use in high-pressure and high-temperature applications. Also known as pressure bolts, these screws are often used to secure pressure tanks, valves, and flanges. They're also good for cold temperatures. With a head that's about 10% wider than standard hex head screws, they handle heavier loads by distributing them over a larger area. The head also has six flat sides to keep wrenches and sockets from slipping and rounding off the drive.
    Length is measured from under the head.
    ASTM Grade B8 18-8 Stainless Steel—A good choice for wet and outdoor environments, such as power plants and water treatment facilities. These screws withstand moisture and mild chemicals but won't hold up to the harsh chemicals that 316 stainless steel can.
    Grip Length—Screws with a grip length have a precisely measured unthreaded section under the head, called a grip. It's stronger than the threaded section, so you can place it in joints exposed to sideways forces.
    Head
    Lg.
    Grip
    Lg.
    Wd.
    Ht.
    Threading
    Thread
    Spacing
    Tensile Strength,
    psi
    Specs. Met
    Each
    ASTM Grade B8 18-8 Stainless Steel
     
    3/8"-16
    1"9/16"15/64"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A33100000
    1 1/4"9/16"15/64"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A3380000
    1 1/2"1/2"9/16"15/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A3450000
    1 3/4"3/4"9/16"15/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A3520000
    2"1"9/16"15/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6010000
    2 1/4"1 1/4"9/16"15/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6020000
    2 1/2"1 1/2"9/16"15/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6030000
    2 3/4"1 3/4"9/16"15/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6040000
    3"2"9/16"15/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6050000
    4"3"9/16"15/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A60600000
    4 1/2"3 1/2"9/16"15/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A60700000
    5"4"9/16"15/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A60800000
    6"5"9/16"15/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A60900000
    7"5 3/4"9/16"15/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A61100000
    8"6 3/4"9/16"15/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A61200000
     
    1/2"-13
    1"7/8"11/32"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A3990000
    1 1/4"7/8"5/16"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A4010000
    1 1/2"7/8"5/16"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A4050000
    1 3/4"1/2"7/8"11/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A4080000
    2"3/4"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A4120000
    2 1/4"1"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6130000
    2 1/2"1 1/4"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A4160000
    2 3/4"1 1/2"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6140000
    3"1 3/4"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A4190000
    3 1/4"2"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6150000
    3 1/2"2 1/4"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A4230000
    3 3/4"2 1/2"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6160000
    4"2 3/4"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A4260000
    4 1/4"3"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6170000
    4 1/2"3 1/4"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6180000
    5"3 3/4"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A61900000
    5 1/2"4 1/4"7/8"11/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A12400000
    6"4 3/4"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A62100000
    6 1/2"5"7/8"11/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A12600000
    7"5 1/2"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A70900000
    8"6 1/2"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A62200000
    9"7 1/2"7/8"5/16"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A62300000
     
    5/8"-11
    1"1 1/16"25/64"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A62500000
    1 1/4"1 1/16"25/64"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6260000
    1 1/2"1 1/16"25/64"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A4430000
    1 3/4"1/4"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6270000
    2"1/2"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A4510000
    2 1/4"3/4"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6280000
    2 1/2"1"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6290000
    2 3/4"1 1/4"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6310000
    3"1 1/2"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A4560000
    3 1/4"1 3/4"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6320000
    3 1/2"2"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A4610000
    3 3/4"2 1/4"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A63300000
    4"2 1/2"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A46500000
    4 1/4"2 3/4"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A63400000
    4 1/2"3"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A63500000
    4 3/4"3 1/4"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A63600000
    5"3 1/2"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A63700000
    5 1/2"4"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A63800000
    6"4 1/2"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A63900000
    7"5 1/4"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A64100000
    8"6 1/4"1 1/16"25/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A64200000
     
    3/4"-10
    1"1 1/4"15/32"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A64500000
    1 1/4"1 1/4"15/32"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A64600000
    1 1/2"1 1/4"15/32"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A4810000
    1 3/4"1 1/4"15/32"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6470000
    2"1 1/4"15/32"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A4860000
    2 1/4"1/2"1 1/4"15/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A6480000
    2 1/2"3/4"1 1/4"15/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A48900000
    2 3/4"1"1 1/4"15/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A64900000
    3"1 1/4"1 1/4"15/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A49200000
    3 1/4"1 1/2"1 1/4"15/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A65100000
    3 1/2"1 3/4"1 1/4"15/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A49500000
    3 3/4"2"1 1/4"15/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A65200000
    4"2 1/4"1 1/4"15/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A49900000
    4 1/4"2 1/2"1 1/4"15/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A65300000
    4 1/2"2 3/4"1 1/4"15/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A65400000
    5"3 1/4"1 1/4"15/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A65500000
    5 1/2"3 3/4"1 1/4"15/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A65600000
    6"4 1/4"1 1/4"15/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A65700000
    7"5"1 1/4"15/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A65800000
    8"6"1 1/4"15/32"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A65900000
     
    7/8"-9
    1"1 7/16"35/64"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A66300000
    1 1/4"1 7/16"35/64"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A66400000
    1 1/2"1 7/16"35/64"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A66500000
    1 3/4"1 7/16"35/64"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A66600000
    2"1 7/16"35/64"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A66700000
    2 1/4"1/4"1 7/16"35/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A66800000
    2 1/2"1/2"1 7/16"35/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A66900000
    2 3/4"3/4"1 7/16"35/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A67100000
    3"1"1 7/16"35/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A67200000
    3 1/4"1 1/4"1 7/16"35/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A67300000
    3 1/2"1 1/2"1 7/16"35/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A67400000
    3 3/4"1 3/4"1 7/16"35/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A67500000
    4"2"1 7/16"35/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A67600000
    4 1/4"2 1/4"1 7/16"35/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A67700000
    4 1/2"2 1/2"1 7/16"35/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A67800000
    4 3/4"2 3/4"1 7/16"35/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A67900000
    5"3"1 7/16"35/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A68100000
    5 1/2"3 1/2"1 7/16"35/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A68200000
     
    1"-8
    1"1 5/8"39/64"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A68700000
    1 1/4"1 5/8"39/64"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A68800000
    1 1/2"1 5/8"39/64"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A68900000
    2"1 5/8"39/64"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A69200000
    2 1/4"1 5/8"39/64"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A69300000
    2 1/2"1/4"1 5/8"39/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A69400000
    3"3/4"1 5/8"39/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A69600000
    3 1/4"1"1 5/8"39/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A69700000
    3 1/2"1 1/4"1 5/8"39/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A69800000
    4"1 3/4"1 5/8"39/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A70100000
    4 1/2"2 1/4"1 5/8"39/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A70200000
    4 3/4"2 1/2"1 5/8"39/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A70300000
    5"2 3/4"1 5/8"39/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A70400000
    5 1/2"3 1/4"1 5/8"39/64"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A70500000
     
    1 1/8"-8
    3"1 13/16"3/4"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A12200000
    3 1/2"1 13/16"3/4"Fully ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A12100000
    4"1 1/2"1 13/16"3/4"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A12300000
    5 3/4"3 1/4"1 13/16"3/4"Partially ThreadedCoarse
    75,000ASTM A193
    ASTM A962
    92655A12700000
     
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