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    55 Products

    Medium-Strength SAE Grade 5 Steel Square Head Screws

    Image of Product. Front orientation. Square Head Screws. Medium-Strength SAE Grade 5 Steel Square Head Screws, Fully Threaded.
    Image of Product. Front orientation. Square Head Screws. Medium-Strength SAE Grade 5 Steel Square Head Screws, Partially Threaded.

    Fully Threaded

    Partially Threaded

    Made from Grade 5 steel, these screws are suitable for fastening most machinery and equipment. Large flat sides make them easy to grip with a wrench and keep them from rotating in square holes. A zinc yellow-chromate plating provides corrosion resistance in wet environments. Grade 5 steel square head screws are marked with three radial lines. Length is measured from under the head.
    Square Head Screws
    Nuts
    Head
    Lg.
    Threading
    Min. Thread
    Lg.
    Thread
    Spacing
    Wd.
    Ht.
    Tensile Strength,
    psi
    Each
    Pkg.
    Qty.
    Pkg.
    Zinc-Yellow-Chromate-Plated Steel
     
    1/4"-20 Threads
    3/4"Fully ThreadedCoarse
    3/8"11/64"120,00092327A8100000010098694A11000000
    1"Fully ThreadedCoarse
    3/8"11/64"120,00092327A811000010098694A1100000
    1 1/4"Fully ThreadedCoarse
    3/8"11/64"120,00092327A812000010098694A1100000
    1 1/2"Fully ThreadedCoarse
    3/8"11/64"120,00092327A813000010098694A1100000
    2"Fully ThreadedCoarse
    3/8"11/64"120,00092327A8140000010098694A1100000
    3"Fully ThreadedCoarse
    3/8"11/64"120,00092327A1110000010098694A1100000
    4"Fully ThreadedCoarse
    3/8"11/64"120,00092327A1120000010098694A1100000
     
    5/16"-18 Threads
    3/4"Fully ThreadedCoarse
    1/2"13/64"120,00092327A815000010098694A11500000
    1"Fully ThreadedCoarse
    1/2"13/64"120,00092327A816000010098694A11500000
    1 1/4"Fully ThreadedCoarse
    1/2"13/64"120,00092327A8170000010098694A11500000
    1 1/2"Fully ThreadedCoarse
    1/2"13/64"120,00092327A8180000010098694A11500000
    2"Fully ThreadedCoarse
    1/2"13/64"120,00092327A8190000010098694A11500000
    3"Fully ThreadedCoarse
    1/2"13/64"120,00092327A1130000010098694A11500000
    4"Fully ThreadedCoarse
    1/2"13/64"120,00092327A1140000010098694A11500000
     
    3/8"-16 Threads
    1"Fully ThreadedCoarse
    9/16"1/4"120,00092327A27900005098694A12000000
    1 1/2"Fully ThreadedCoarse
    9/16"1/4"120,00092327A28300005098694A12000000
    2"Fully ThreadedCoarse
    9/16"1/4"120,00092327A28800005098694A12000000
    2 1/2"Fully ThreadedCoarse
    9/16"1/4"120,00092327A82000005098694A12000000
    3"Fully ThreadedCoarse
    9/16"1/4"120,00092327A29100005098694A12000000
    4"Fully ThreadedCoarse
    9/16"1/4"120,00092327A29400005098694A12000000
     
    1/2"-13 Threads
    1"Fully ThreadedCoarse
    3/4"21/64"120,00092327A82100002598694A13000000
    1 1/4"Fully ThreadedCoarse
    3/4"21/64"120,00092327A82200002598694A13000000
    1 1/2"Fully ThreadedCoarse
    3/4"21/64"120,00092327A82300002598694A13000000
    2"Fully ThreadedCoarse
    3/4"21/64"120,00092327A30400002598694A13000000
    2 1/2"Fully ThreadedCoarse
    3/4"21/64"120,00092327A30800002598694A13000000
    3"Fully ThreadedCoarse
    3/4"21/64"120,00092327A31100002598694A13000000
    3 1/2"Fully ThreadedCoarse
    3/4"21/64"120,00092327A82400002598694A13000000
    4"Fully ThreadedCoarse
    3/4"21/64"120,00092327A31400002598694A13000000
    4 1/2"Partially Threaded1 1/4"Coarse
    3/4"21/64"120,00092327A115000002598694A13000000
    5"Fully ThreadedCoarse
    3/4"21/64"120,00092327A31700002598694A13000000
    6"Partially Threaded1 1/4"Coarse
    3/4"21/64"120,00092327A116000002598694A13000000
     
    5/8"-11 Threads
    2"Fully ThreadedCoarse
    15/16"27/64"120,00092327A32300001098694A1350000
    2 1/2"Fully ThreadedCoarse
    15/16"27/64"120,00092327A32700001098694A1350000
    3"Fully ThreadedCoarse
    15/16"27/64"120,00092327A33200001098694A1350000
    4"Fully ThreadedCoarse
    15/16"27/64"120,00092327A33800001098694A1350000
    5"Fully ThreadedCoarse
    15/16"27/64"120,00092327A34100001098694A1350000
    6"Partially Threaded1 1/2"Coarse
    15/16"27/64"120,00092327A117000001098694A1350000
     
    3/4"-10 Threads
    2"Fully ThreadedCoarse
    1 1/8"1/2"120,00092327A82500001098694A14000000
    2 1/2"Partially Threaded1 3/4"Coarse
    1 1/8"1/2"120,00092327A118000001098694A14000000
    3"Fully ThreadedCoarse
    1 1/8"1/2"120,00092327A36200001098694A14000000
    3 1/2"Partially Threaded1 3/4"Coarse
    1 1/8"1/2"120,00092327A119000001098694A14000000
    4"Fully ThreadedCoarse
    1 1/8"1/2"120,00092327A36500001098694A14000000
    5"Fully ThreadedCoarse
    1 1/8"1/2"120,00092327A367000001098694A14000000
    6"Fully ThreadedCoarse
    1 1/8"1/2"120,00092327A369000001098694A14000000
     
    1"-8 Threads
    3"Fully ThreadedCoarse
    1 1/2"11/16"120,00092327A41300000198694A1500000
    4"Fully ThreadedCoarse
    1 1/2"11/16"120,00092327A41900000198694A1500000
    5"Fully ThreadedCoarse
    1 1/2"11/16"120,00092327A42500000198694A1500000
    6"Fully ThreadedCoarse
    1 1/2"11/16"120,00092327A43100000198694A1500000
     
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