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    147 Products

    Steel 12-Point Screws

    Image of Product. Front orientation. 12-Point Screws. Steel 12-Point Screws, Fully Threaded.
    Image of Product. Front orientation. 12-Point Screws. Steel 12-Point Screws, Partially Threaded.

    Fully Threaded

    Partially

    Threaded

    Good for high-strength fastening, these screws are made from steel comparable in strength to Grade 9 steel. Use them for heavy duty stamping applications as well as earth-moving machinery, such as bulldozers and excavators. The head makes 12 points of contact with a wrench to handle more torque than a socket head or hex head screw. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. To install, use a 12-point wrench that matches the head width of your screw.
    Black Oxide—Black-oxide coated screws are mildly corrosion resistant in dry environments.
    Head
    Lg.
    Threading
    Min. Thread
    Lg.
    Thread
    Spacing
    Wd.
    Ht.
    Flange
    Dia.
    Tensile Strength,
    psi
    Material
    Pkg.
    Qty.
    Pkg.
    1/4"-20
    1/2"Fully ThreadedCoarse
    1/4"1/4"3/8"170,000Alloy Steel
    5091271A537000000
    5/8"Fully ThreadedCoarse
    1/4"1/4"3/8"170,000Alloy Steel
    5091271A53900000
    3/4"Fully ThreadedCoarse
    1/4"1/4"3/8"170,000Alloy Steel
    5091271A54000000
    7/8"Fully ThreadedCoarse
    1/4"1/4"3/8"170,000Alloy Steel
    5091271A54100000
    1"Fully ThreadedCoarse
    1/4"1/4"3/8"170,000Alloy Steel
    5091271A54200000
    1 1/4"Fully ThreadedCoarse
    1/4"1/4"3/8"170,000Alloy Steel
    5091271A54400000
    1 1/2"Partially Threaded1"Coarse
    1/4"1/4"3/8"170,000Alloy Steel
    5091271A54600000
    1 3/4"Partially Threaded1"Coarse
    1/4"1/4"3/8"170,000Alloy Steel
    2591271A5470000
    2"Partially Threaded1"Coarse
    1/4"1/4"3/8"170,000Alloy Steel
    2591271A55000000
    2 1/2"Partially Threaded1"Coarse
    1/4"1/4"3/8"170,000Alloy Steel
    1091271A5480000
    3"Partially Threaded1"Coarse
    1/4"1/4"3/8"170,000Alloy Steel
    2591271A55800000
    3 1/2"Partially Threaded1"Coarse
    5/16"1/4"1/2"170,000Black-Oxide Alloy Steel194173A3010000
    4"Partially Threaded1"Coarse
    5/16"1/4"1/2"170,000Black-Oxide Alloy Steel194173A3020000
    4 1/2"Partially Threaded1"Coarse
    5/16"1/4"1/2"170,000Black-Oxide Alloy Steel194173A3030000
     
    5/16"-18
    1/2"Fully ThreadedCoarse
    5/16"5/16"15/32"170,000Alloy Steel
    2591271A5800000
    3/4"Fully ThreadedCoarse
    5/16"5/16"15/32"170,000Alloy Steel
    5091271A58100000
    7/8"Fully ThreadedCoarse
    5/16"5/16"15/32"170,000Alloy Steel
    5091271A58400000
    1"Fully ThreadedCoarse
    5/16"5/16"15/32"170,000Alloy Steel
    2591271A58300000
    1 1/4"Fully ThreadedCoarse
    5/16"5/16"15/32"170,000Alloy Steel
    2591271A58500000
    1 1/2"Fully ThreadedCoarse
    5/16"5/16"15/32"170,000Alloy Steel
    2591271A58700000
    1 3/4"Partially Threaded1 1/8"Coarse
    5/16"5/16"15/32"170,000Alloy Steel
    2591271A58900000
    2"Partially Threaded1 1/8"Coarse
    5/16"5/16"15/32"170,000Alloy Steel
    2591271A59100000
    2 1/2"Partially Threaded1 1/8"Coarse
    5/16"5/16"15/32"170,000Alloy Steel
    2591271A59300000
    3"Partially Threaded1"Coarse
    3/8"5/16"5/8"170,000Black-Oxide Alloy Steel194173A3110000
    3 1/2"Partially Threaded1"Coarse
    3/8"5/16"5/8"170,000Black-Oxide Alloy Steel194173A3120000
    4"Partially Threaded1"Coarse
    3/8"5/16"5/8"170,000Black-Oxide Alloy Steel194173A3130000
    4 1/2"Partially Threaded1"Coarse
    3/8"5/16"5/8"170,000Black-Oxide Alloy Steel194173A3140000
    5"Partially Threaded1"Coarse
    3/8"5/16"5/8"170,000Black-Oxide Alloy Steel194173A3150000
     
    3/8"-16
    3/4"Fully ThreadedCoarse
    3/8"3/8"9/16"170,000Alloy Steel
    2591271A62200000
    7/8"Fully ThreadedCoarse
    3/8"3/8"9/16"170,000Alloy Steel
    1091271A62300000
    1"Fully ThreadedCoarse
    3/8"3/8"9/16"170,000Alloy Steel
    2591271A62400000
    1 1/4"Fully ThreadedCoarse
    3/8"3/8"9/16"170,000Alloy Steel
    2591271A62600000
    1 1/2"Fully ThreadedCoarse
    3/8"3/8"9/16"170,000Alloy Steel
    2591271A62800000
    1 3/4"Partially Threaded1 1/4"Coarse
    3/8"3/8"9/16"170,000Alloy Steel
    2591271A63000000
    2"Partially Threaded1 1/4"Coarse
    3/8"3/8"9/16"170,000Alloy Steel
    2591271A63200000
    2 1/4"Partially Threaded1 1/4"Coarse
    3/8"3/8"9/16"170,000Alloy Steel
    1091271A6330000
    2 1/2"Partially Threaded1 1/4"Coarse
    3/8"3/8"9/16"170,000Alloy Steel
    1091271A63400000
    2 3/4"Partially Threaded1 1/4"Coarse
    3/8"3/8"9/16"170,000Alloy Steel
    1091271A10200000
    3"Partially Threaded1 1/4"Coarse
    3/8"3/8"9/16"170,000Alloy Steel
    1091271A63600000
    3 1/2"Partially Threaded1 1/4"Coarse
    3/8"3/8"9/16"170,000Alloy Steel
    1091271A63800000
    4"Partially Threaded1 1/8"Coarse
    7/16"3/8"11/16"170,000Black-Oxide Alloy Steel194173A3230000
     
    7/16"-14
    1"Fully ThreadedCoarse
    7/16"7/16"21/32"170,000Alloy Steel
    591271A90100000
    1 1/4"Fully ThreadedCoarse
    7/16"7/16"21/32"170,000Alloy Steel
    1091271A67100000
    1 1/2"Fully ThreadedCoarse
    7/16"7/16"21/32"170,000Alloy Steel
    1091271A67300000
    2"Partially Threaded1 3/8"Coarse
    7/16"7/16"21/32"170,000Alloy Steel
    1091271A67700000
    2 1/4"Partially Threaded1 3/8"Coarse
    7/16"7/16"21/32"170,000Alloy Steel
    1091271A67800000
    2 1/2"Partially Threaded1 3/8"Coarse
    7/16"7/16"21/32"170,000Alloy Steel
    1091271A67900000
    3"Partially Threaded1 1/4"Coarse
    1/2"3/8"3/4"170,000Black-Oxide Alloy Steel194173A3270000
    3 1/2"Partially Threaded1 1/4"Coarse
    1/2"3/8"3/4"170,000Black-Oxide Alloy Steel194173A3280000
    4"Partially Threaded1 1/4"Coarse
    1/2"3/8"3/4"170,000Black-Oxide Alloy Steel194173A3290000
    4 1/2"Partially Threaded1 1/4"Coarse
    1/2"3/8"3/4"170,000Black-Oxide Alloy Steel194173A3310000
    5"Partially Threaded1 1/4"Coarse
    1/2"3/8"3/4"170,000Black-Oxide Alloy Steel194173A3320000
     
    1/2"-13
    1"Fully ThreadedCoarse
    1/2"1/2"3/4"170,000Alloy Steel
    1091271A71200000
    1 1/4"Fully ThreadedCoarse
    1/2"1/2"3/4"170,000Alloy Steel
    1091271A71400000
    1 1/2"Fully ThreadedCoarse
    1/2"1/2"3/4"170,000Alloy Steel
    1091271A71600000
    1 3/4"Fully ThreadedCoarse
    1/2"1/2"3/4"170,000Alloy Steel
    1091271A71800000
    2"Fully ThreadedCoarse
    1/2"1/2"3/4"170,000Alloy Steel
    1091271A72000000
    2 1/4"Partially Threaded1 1/2"Coarse
    1/2"1/2"3/4"170,000Alloy Steel
    591271A7210000
    2 1/2"Partially Threaded1 1/2"Coarse
    1/2"1/2"3/4"170,000Alloy Steel
    591271A7230000
    2 3/4"Partially Threaded1 1/2"Coarse
    1/2"1/2"3/4"170,000Alloy Steel
    591271A1060000
    3"Partially Threaded1 1/2"Coarse
    1/2"1/2"3/4"170,000Alloy Steel
    591271A7240000
    3 1/4"Partially Threaded1 1/2"Coarse
    1/2"1/2"3/4"170,000Alloy Steel
    591271A10700000
    3 1/2"Partially Threaded1 1/2"Coarse
    1/2"1/2"3/4"170,000Alloy Steel
    591271A72600000
    4"Partially Threaded1 1/2"Coarse
    1/2"1/2"3/4"170,000Alloy Steel
    591271A72800000
    5"Partially Threaded1 1/2"Coarse
    1/2"1/2"3/4"170,000Alloy Steel
    591271A73200000
    6"Partially Threaded1 1/4"Coarse
    9/16"7/16"7/8"170,000Black-Oxide Alloy Steel194173A34200000
     
    5/8"-11
    1 1/4"Fully ThreadedCoarse
    5/8"5/8"15/16"170,000Alloy Steel
    591271A79800000
    1 1/2"Fully ThreadedCoarse
    5/8"5/8"15/16"170,000Alloy Steel
    591271A7990000
    1 3/4"Fully ThreadedCoarse
    5/8"5/8"15/16"170,000Alloy Steel
    591271A8000000
    2"Fully ThreadedCoarse
    5/8"5/8"15/16"170,000Alloy Steel
    591271A8020000
    2 1/4"Fully ThreadedCoarse
    5/8"5/8"15/16"170,000Alloy Steel
    591271A80300000
    2 1/2"Partially Threaded1 3/4"Coarse
    5/8"5/8"15/16"170,000Alloy Steel
    591271A80400000
    2 3/4"Partially Threaded1 3/4"Coarse
    5/8"5/8"15/16"170,000Alloy Steel
    591271A80500000
    3"Partially Threaded1 3/4"Coarse
    5/8"5/8"15/16"170,000Alloy Steel
    591271A80600000
    3 1/2"Partially Threaded1 3/4"Coarse
    5/8"5/8"15/16"170,000Alloy Steel
    591271A80800000
    4"Partially Threaded1 3/4"Coarse
    5/8"5/8"15/16"170,000Alloy Steel
    591271A81000000
     
    3/4"-10
    1 1/2"Fully ThreadedCoarse
    3/4"3/4"1 1/8"170,000Alloy Steel
    591271A84100000
    2"Fully ThreadedCoarse
    3/4"3/4"1 1/8"170,000Alloy Steel
    191271A8430000
    2 1/2"Fully ThreadedCoarse
    3/4"3/4"1 1/8"170,000Alloy Steel
    191271A8450000
    3"Partially Threaded2"Coarse
    3/4"3/4"1 1/8"170,000Alloy Steel
    191271A8470000
    3 1/2"Partially Threaded2"Coarse
    3/4"3/4"1 1/8"170,000Alloy Steel
    191271A8490000
    4"Partially Threaded2"Coarse
    3/4"3/4"1 1/8"170,000Alloy Steel
    191271A8510000
     
    7/8"-9
    2"Fully ThreadedCoarse
    7/8"7/8"1 5/16"170,000Alloy Steel
    191271A1080000
    2 3/4"Fully ThreadedCoarse
    7/8"7/8"1 5/16"170,000Alloy Steel
    191271A1090000
    3"Fully ThreadedCoarse
    7/8"7/8"1 5/16"170,000Alloy Steel
    191271A1110000
    3 1/4"Partially Threaded2 1/4"Coarse
    7/8"7/8"1 5/16"170,000Alloy Steel
    191271A1120000
     
    1"-8
    2 1/4"Fully ThreadedCoarse
    1"1"1 1/2"170,000Alloy Steel
    191271A1130000
    2 1/2"Fully ThreadedCoarse
    1"1"1 1/2"170,000Alloy Steel
    191271A1140000
    3"Fully ThreadedCoarse
    1"1"1 1/2"170,000Alloy Steel
    191271A1150000
    3 1/2"Partially Threaded2 1/2"Coarse
    1"1"1 1/2"170,000Alloy Steel
    191271A11600000
     

    Stainless Steel 12-Point Screws

    Image of Product. Fully Threaded. Front orientation. 12-Point Screws. Stainless Steel 12-Point Screws, Fully Threaded.
    Image of Product. Partially Threaded. Front orientation. 12-Point Screws. Stainless Steel 12-Point Screws, Partially Threaded.

    Fully Threaded

    Partially

    Threaded

    These stainless steel screws won’t rust or corrode when exposed to moisture and chemicals. The head makes 12 points of contact with a wrench to handle more torque than a socket head or hex head screw. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. To install, use a 12-point wrench that matches the head width of your screw.
    18-8 Stainless Steel—18-8 stainless steel screws have good chemical resistance and may be mildly magnetic.
    450 Stainless Steel—450 stainless steel screws are more corrosion resistant than 18-8 stainless steel screws and have good resistance to chemicals and salt water. They are magnetic.
    Extreme Strength—Our strongest 12-point screws. They hold up in the most demanding high-stress applications, such as in earthmoving equipment and heavy duty stamping.
    Head
    Lg.
    Threading
    Min. Thread
    Lg.
    Thread
    Spacing
    Wd.
    Ht.
    Flange
    Dia.
    Tensile Strength,
    psi
    Material
    Pkg.
    Qty.
    Pkg.
    Stainless Steel
     
    1/4"-20
    1/2"Fully ThreadedCoarse
    1/4"1/4"3/8"85,00018-8 Stainless Steel
    2591243A133000000
    3/4"Fully ThreadedCoarse
    1/4"1/4"3/8"85,00018-8 Stainless Steel
    1091243A1350000
    1"Fully ThreadedCoarse
    1/4"1/4"3/8"85,00018-8 Stainless Steel
    1091243A1370000
    1 1/4"Fully ThreadedCoarse
    1/4"1/4"3/8"85,00018-8 Stainless Steel
    1091243A1380000
    1 1/2"Partially Threaded1"Coarse
    1/4"1/4"3/8"85,00018-8 Stainless Steel
    1091243A1390000
     
    5/16"-18
    3/4"Fully ThreadedCoarse
    5/16"5/16"15/32"85,00018-8 Stainless Steel
    1091243A15500000
    1"Fully ThreadedCoarse
    5/16"5/16"15/32"85,00018-8 Stainless Steel
    1091243A15700000
    1 1/4"Fully ThreadedCoarse
    5/16"5/16"15/32"85,00018-8 Stainless Steel
    1091243A15800000
    1 1/2"Fully ThreadedCoarse
    5/16"5/16"15/32"85,00018-8 Stainless Steel
    1091243A15900000
     
    3/8"-16
    3/4"Fully ThreadedCoarse
    3/8"3/8"9/16"85,00018-8 Stainless Steel
    591243A1750000
    1"Fully ThreadedCoarse
    3/8"3/8"9/16"85,00018-8 Stainless Steel
    591243A1770000
    1 1/4"Fully ThreadedCoarse
    3/8"3/8"9/16"85,00018-8 Stainless Steel
    591243A17800000
    1 1/2"Fully ThreadedCoarse
    3/8"3/8"9/16"85,00018-8 Stainless Steel
    591243A17900000
    1 3/4"Partially Threaded1 1/8"Coarse
    3/8"3/8"9/16"85,00018-8 Stainless Steel
    591243A18100000
    2"Partially Threaded1 3/8"Coarse
    3/8"3/8"9/16"85,00018-8 Stainless Steel
    591243A18200000
     
    Extreme-Strength Stainless Steel
     
    8-32
    3/8"Fully ThreadedCoarse
    1/4"1/8"19/64"170,000450 Stainless Steel196242A1010000
    1/2"Fully ThreadedCoarse
    1/4"1/8"19/64"170,000450 Stainless Steel196242A1020000
    5/8"Fully ThreadedCoarse
    1/4"1/8"19/64"170,000450 Stainless Steel196242A1030000
    3/4"Fully ThreadedCoarse
    1/4"1/8"19/64"170,000450 Stainless Steel196242A1040000
    1"Fully ThreadedCoarse
    1/4"1/8"19/64"170,000450 Stainless Steel196242A1050000
     
    10-24
    1/2"Fully ThreadedCoarse
    1/4"1/4"23/64"170,000450 Stainless Steel196242A1060000
    5/8"Fully ThreadedCoarse
    1/4"1/4"23/64"170,000450 Stainless Steel196242A1070000
    3/4"Fully ThreadedCoarse
    1/4"1/4"23/64"170,000450 Stainless Steel196242A1080000
    1"Fully ThreadedCoarse
    1/4"1/4"23/64"170,000450 Stainless Steel196242A1090000
     
    1/4"-20
    1/2"Fully ThreadedCoarse
    5/16"1/4"33/64"170,00018-8 Stainless Steel
    196242A5020000
    5/8"Fully ThreadedCoarse
    5/16"1/4"33/64"170,000450 Stainless Steel196242A1350000
    3/4"Fully ThreadedCoarse
    5/16"1/4"33/64"170,00018-8 Stainless Steel
    196242A5060000
    7/8"Fully ThreadedCoarse
    5/16"1/4"33/64"170,000450 Stainless Steel196242A1430000
    1"Fully ThreadedCoarse
    5/16"1/4"33/64"170,00018-8 Stainless Steel
    196242A5090000
    1 1/4"Partially Threaded1"Coarse
    5/16"1/4"33/64"170,000450 Stainless Steel196242A5130000
    1 1/2"Partially Threaded1"Coarse
    5/16"1/4"33/64"170,000450 Stainless Steel196242A5210000
    1 3/4"Partially Threaded1"Coarse
    5/16"1/4"33/64"170,000450 Stainless Steel196242A5280000
    2"Partially Threaded1"Coarse
    5/16"1/4"33/64"170,000450 Stainless Steel196242A5360000
    2 1/4"Partially Threaded1"Coarse
    5/16"1/4"33/64"170,000450 Stainless Steel196242A5430000
    2 1/2"Partially Threaded1"Coarse
    5/16"1/4"33/64"170,000450 Stainless Steel196242A5510000
    2 3/4"Partially Threaded1"Coarse
    5/16"1/4"33/64"170,000450 Stainless Steel196242A5580000
    3"Partially Threaded1"Coarse
    5/16"1/4"33/64"170,000450 Stainless Steel196242A5660000
     
    5/16"-18
    9/16"Fully ThreadedCoarse
    3/8"5/16"5/8"170,00018-8 Stainless Steel
    196242A6300000
    3/4"Fully ThreadedCoarse
    3/8"5/16"5/8"170,00018-8 Stainless Steel
    196242A6310000
    1"Fully ThreadedCoarse
    3/8"5/16"5/8"170,00018-8 Stainless Steel
    196242A6320000
    1 1/2"Partially Threaded1"Coarse
    3/8"5/16"5/8"170,000450 Stainless Steel196242A6330000
    1 3/4"Partially Threaded1"Coarse
    3/8"5/16"5/8"170,000450 Stainless Steel196242A6410000
    2"Partially Threaded1"Coarse
    3/8"5/16"5/8"170,000450 Stainless Steel196242A6480000
    2 1/4"Partially Threaded1"Coarse
    3/8"5/16"5/8"170,000450 Stainless Steel196242A6560000
    2 1/2"Partially Threaded1"Coarse
    3/8"5/16"5/8"170,000450 Stainless Steel196242A6630000
    2 3/4"Partially Threaded1"Coarse
    3/8"5/16"5/8"170,000450 Stainless Steel196242A6710000
    3"Partially Threaded1"Coarse
    3/8"5/16"5/8"170,000450 Stainless Steel196242A6780000
     
    3/8"-16
    1/2"Fully ThreadedCoarse
    3/8"5/16"5/8"170,00018-8 Stainless Steel
    196242A7340000
    3/4"Fully ThreadedCoarse
    3/8"5/16"5/8"170,00018-8 Stainless Steel
    196242A7350000
    1"Fully ThreadedCoarse
    3/8"5/16"5/8"170,00018-8 Stainless Steel
    196242A7360000
    1 1/2"Partially Threaded1 1/8"Coarse
    3/8"5/16"5/8"170,000450 Stainless Steel196242A7380000
    1 3/4"Partially Threaded1 1/8"Coarse
    3/8"5/16"5/8"170,000450 Stainless Steel196242A7460000
    2"Partially Threaded1 1/8"Coarse
    3/8"5/16"5/8"170,000450 Stainless Steel196242A7530000
    2 1/4"Partially Threaded1 1/8"Coarse
    3/8"5/16"5/8"170,000450 Stainless Steel196242A7610000
    2 1/2"Partially Threaded1 1/8"Coarse
    3/8"5/16"5/8"170,000450 Stainless Steel196242A7680000
    2 3/4"Partially Threaded1 1/8"Coarse
    3/8"5/16"5/8"170,000450 Stainless Steel196242A7760000
    3"Partially Threaded1 1/8"Coarse
    3/8"5/16"5/8"170,000450 Stainless Steel196242A7830000
     
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