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    57 Products

    Steel Torx Flat Head Thread-Cutting Screws

    Image of Product. Front orientation. Tapping Screws. Steel Torx Flat Head Thread-Cutting Screws.
    Keep drivers from slipping as you cut threads and secure components with countersunk holes. These Torx screws have a six-lobe recess that’s also known as a star drive. Because they remove material, they take less effort to install and put less stress on your workpiece than thread-forming screws. Their flat, beveled head sits flush in holes.
    Length is measured from the top of the head.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Black Phosphate-Coated Steel—More corrosion resistant than black-oxide steel, these screws are suitable for environments with some moisture. They have a dark, matte coating for a finished look.
    Head
    Lg.
    Dia.
    Ht.
    Tapping
    Screw Type
    Drive
    Size
    Approx. Threads
    per In.
    Countersink
    Angle
    Flat Head
    Profile
    Drill Bit
    Size
    Shank Cross
    Section
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
     
    No. 6 Screw Size
    3/8"0.262"0.083"FT103282°
    Standard
    31 Ga.
    Round5090390A136000000
    1/2"0.262"0.083"FT103282°
    Standard
    31 Ga.
    Round5090390A13700000
    3/4"0.262"0.083"FT103282°
    Standard
    31 Ga.
    Round10090390A13800000
     
    No. 8 Screw Size
    1/2"0.312"0.1"FT153282°
    Standard
    26 Ga.
    Round10090390A13900000
    3/4"0.312"0.1"FT153282°
    Standard
    26 Ga.
    Round5090390A14100000
     
    No. 10 Screw Size
    5/8"0.362"0.116"FT202482°
    Standard
    17 Ga.
    Round5090390A14200000
    3/4"0.362"0.116"FT202482°
    Standard
    17 Ga.
    Round5090390A14300000
    1"0.362"0.116"FT202482°
    Standard
    17 Ga.
    Round2590390A14400000
     
    No. 12 Screw Size
    1"0.412"0.132"FT252482°
    Standard
    8 Ga.
    Round2590390A14500000
     
    1/4" Screw Size
    1/2"0.477"0.153"FT272082°
    Standard
    1 Ga.
    Round2590390A14600000
    5/8"0.477"0.153"FT272082°
    Standard
    1 Ga.
    Round2590390A14700000
    3/4"0.477"0.153"FT272082°
    Standard
    1 Ga.
    Round2590390A14800000
    1"0.477"0.153"FT272082°
    Standard
    1 Ga.
    Round2590390A14900000
    1 1/4"0.477"0.153"FT272082°
    Standard
    1 Ga.
    Round2590390A15100000
    1 1/2"0.477"0.153"FT272082°
    Standard
    1 Ga.
    Round2590390A15200000
     
    Black Phosphate-Coated Steel
     
    No. 10 Screw Size
    1 1/4"0.362"0.116"FT202482°
    Standard
    17 Ga.
    Round5090390A11100000
     
    1/4" Screw Size
    1/2"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round2590390A11200000
    3/4"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round2590390A11300000
    1"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round10090390A53500000
    1 1/4"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round10090390A54000000
    1 1/2"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round5090390A54500000
    1 3/4"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round5090390A11400000
    2"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round5090390A55000000
    2 1/4"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round5090390A55100000
    2 1/2"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round5090390A55200000
    2 3/4"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round2590390A11500000
    3"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round2590390A55400000
    3 1/2"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round2590390A55500000
    4"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round2590390A55600000
    4 1/2"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round190390A1160000
    5"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round190390A1170000
    6"0.477"0.153"FT302082°
    Standard
    1 Ga.
    Round190390A1180000
     
    5/16" Screw Size
    3/4"0.597"0.191"FT401882°
    Standard
    L
    Round1090390A11900000
    1"0.597"0.191"FT401882°
    Standard
    L
    Round5090390A12100000
    1 1/4"0.597"0.191"FT401882°
    Standard
    L
    Round5090390A12200000
    1 1/2"0.597"0.191"FT401882°
    Standard
    L
    Round5090390A12300000
    1 3/4"0.597"0.191"FT401882°
    Standard
    L
    Round5090390A12400000
    2"0.597"0.191"FT401882°
    Standard
    L
    Round5090390A59100000
    2 1/4"0.597"0.191"FT401882°
    Standard
    L
    Round2590390A59200000
    2 1/2"0.597"0.191"FT401882°
    Standard
    L
    Round2590390A59300000
    3"0.597"0.191"FT401882°
    Standard
    L
    Round2590390A59500000
    3 1/2"0.597"0.191"FT401882°
    Standard
    L
    Round590390A12500000
    4"0.597"0.191"FT401882°
    Standard
    L
    Round190390A1260000
    5"0.597"0.191"FT401882°
    Standard
    L
    Round190390A1270000
    6"0.597"0.191"FT401882°
    Standard
    L
    Round190390A1280000
     
    3/8" Screw Size
    1"0.717"0.23"FT401682°
    Standard
    T
    Round590390A12900000
    1 1/4"0.717"0.23"FT401682°
    Standard
    T
    Round590390A13100000
    1 1/2"0.717"0.23"FT401682°
    Standard
    T
    Round1090390A13200000
    2"0.717"0.23"FT401682°
    Standard
    T
    Round2590390A13300000
    2 1/2"0.717"0.23"FT401682°
    Standard
    T
    Round190390A1340000
    3"0.717"0.23"FT401682°
    Standard
    T
    Round190390A1350000
     

    Steel Torx Flat Head Screws for Wood and Composite Wood

    Image of Product. Front orientation. Wood Screws. Steel Torx Flat Head Screws for Wood and Composite Wood.
    The thin head reduces surface damage and leaves a smooth, near-invisible finish on decking and trim. These screws are also known as trim head screws. With a deep six-lobe opening, their Torx drive handles more torque than slotted, Phillips, and hex drives. The flat head creates a discreet look in countersunk holes and deters snags.
    Drill a pilot hole slightly smaller than the screw to prevent splitting. Length is measured from the top of the head.
    Green Corrosion-Resistant-Coated Steel—The dark-green coating resists rust at the level of stainless steel. All of these screws have passed a 1,500-hour salt spray test.
    Head
    Lg.
    Dia.
    Ht.
    Drill Bit
    Size
    Flat Head
    Profile
    Approx. Threads
    per In.
    Threading
    Tapping
    Method
    Pkg.
    Qty.
    Pkg.
    Green Corrosion-Resistant-Coated Steel
     
    No. 8
    2"0.323"0.125"5/32"
    Narrow
    10Partially ThreadedThread Cutting5091520A323000000
     
    No. 9
    2 1/2"0.343"0.125"5/32"
    Narrow
    9Partially ThreadedThread Cutting5091520A32500000
    3"0.343"0.125"5/32"
    Narrow
    9Partially ThreadedThread Cutting2591520A32600000
     
    No. 10
    3 1/2"0.354"0.125"5/32"
    Narrow
    8Partially ThreadedThread Cutting2591520A32700000
     

    Distortion-Free Screws for Composite Wood

    Image of Product. Front orientation. Wood Screws. Distortion-Free Screws for Composite Wood.
    Reverse threads pull stray material inward when fastening composite wood instead of letting it bulge out to the surface. The flat underside of the pancake head creates a strong hold without the need for a countersunk hole. The Torx drive handles more torque than slotted, Phillips, and hex drives.
    The screw drill tip acts as a built-in pilot, though pilot holes are still recommended near edges to avoid splitting. Length is measured from the top of the head.
    18-8 Stainless Steel—The choice for wet and outdoor environments, these screws resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.
    Head
    Lg.
    Dia.
    Ht.
    Drill Bit
    Size
    Rounded Head
    Profile
    Approx. Threads
    per In.
    Threading
    Tapping
    Method
    Tapping
    Screw Type
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    No. 10
    2 1/2"0.317"0.087"3/32"
    Narrow
    9Fully ThreadedThread Cutting172598419A330000000
    2 3/4"0.266"0.11"3/32"
    Narrow
    13Fully ThreadedThread Cutting172598419A44000000
     
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