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    192 Products

    Stainless Steel Square-Drive Flat Head Screws for Wood and Composite Wood

    Image of Product. Front orientation. Wood Screws. Stainless Steel Square-Drive Flat Head Screws for Wood and Composite Wood.
    Fasten decking and fencing outdoors with screws that won't rust. They're often used with chemically treated wood, such as ACQ-treated (arsenic-free) lumber. Also known as deck screws, their trumpet shape spreads pressure to prevent splitting, while the flat head limits snags. The square drive handles more torque than slotted and Phillips 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.
    316 Stainless Steel—Superior to 18-8 stainless steel, these screws won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Head
    Lg.
    Dia.
    Ht.
    Drill Bit
    Size
    Flat Head
    Profile
    Approx. Threads
    per In.
    Threading
    Tapping
    Method
    Tapping
    Screw Type
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    No. 6
    5/8"0.344"0.197"1/16"
    Standard
    9Partially ThreadedThread Cutting1710090000A143000000
    3/4"0.344"0.197"1/16"
    Standard
    9Partially ThreadedThread Cutting1710090000A14700000
    1"0.344"0.197"1/16"
    Standard
    9Partially ThreadedThread Cutting1710090000A15100000
    1 1/4"0.344"0.197"1/16"
    Standard
    9Partially ThreadedThread Cutting1710090000A15500000
    1 1/2"0.344"0.197"1/16"
    Standard
    18Partially ThreadedThread Cutting1710090000A15700000
    1 5/8"0.344"0.197"1/16"
    Standard
    9Partially ThreadedThread Cutting1710090000A15900000
    2"0.344"0.197"1/16"
    Standard
    18Partially ThreadedThread Cutting1710090000A16100000
     
    No. 7
    1"0.23"0.125"1/16"
    Narrow
    10Partially ThreadedThread Cutting175091530A77100000
    1 5/8"0.23"0.125"1/16"
    Narrow
    10Partially ThreadedThread Cutting175091530A77400000
    2"0.23"0.125"1/16"
    Narrow
    10Partially ThreadedThread Cutting175091530A77600000
    2 1/4"0.23"0.125"1/16"
    Narrow
    10Partially ThreadedThread Cutting175091530A77800000
    2 1/2"0.23"0.125"1/16"
    Narrow
    10Partially ThreadedThread Cutting175091530A78200000
    3"0.23"0.125"1/16"
    Narrow
    10Partially ThreadedThread Cutting172591530A40000000
     
    No. 8
    3/4"0.344"0.192"5/64"
    Standard
    8Partially ThreadedThread Cutting1710090000A18800000
    1"0.344"0.192"5/64"
    Standard
    15Partially ThreadedThread Cutting1710090000A2110000
    1 1/4"0.344"0.192"5/64"
    Standard
    8Partially ThreadedThread Cutting1710090000A19600000
    1 1/2"0.344"0.192"5/64"
    Standard
    15Partially ThreadedThread Cutting1710090000A21200000
    1 5/8"0.344"0.192"5/64"
    Standard
    8Partially ThreadedThread Cutting175090000A20000000
    1 3/4"0.344"0.192"5/64"
    Standard
    15Partially ThreadedThread Cutting1710090000A21300000
    2"0.344"0.192"5/64"
    Standard
    8Partially ThreadedThread Cutting175090000A20500000
    2 1/2"0.344"0.192"5/64"
    Standard
    8Partially ThreadedThread Cutting175090000A21500000
    2 3/4"0.344"0.192"5/64"
    Standard
    15Partially ThreadedThread Cutting175090000A21400000
    3"0.344"0.192"5/64"
    Standard
    8Partially ThreadedThread Cutting175090000A21900000
     
    No. 9
    4"0.25"0.125"5/64"
    Narrow
    14Partially ThreadedThread Cutting171091530A4250000
     
    No. 10
    1"0.344"0.189"3/32"
    Standard
    8Partially ThreadedThread Cutting1710090000A22000000
    1 1/4"0.344"0.189"3/32"
    Standard
    8Partially ThreadedThread Cutting1710090000A22200000
    1 1/2"0.344"0.189"3/32"
    Standard
    8Partially ThreadedThread Cutting175090000A22400000
    1 5/8"0.344"0.189"3/32"
    Standard
    13Partially ThreadedThread Cutting175090000A31100000
    1 3/4"0.344"0.189"3/32"
    Standard
    8Partially ThreadedThread Cutting175090000A22600000
    2"0.344"0.189"3/32"
    Standard
    8Partially ThreadedThread Cutting175090000A22800000
    2 1/4"0.344"0.189"3/32"
    Standard
    13Partially ThreadedThread Cutting175090000A31200000
    2 1/2"0.344"0.189"3/32"
    Standard
    8Partially ThreadedThread Cutting172590000A25500000
    2 3/4"0.344"0.189"3/32"
    Standard
    13Partially ThreadedThread Cutting172590000A3130000
    3"0.344"0.189"3/32"
    Standard
    8Partially ThreadedThread Cutting172590000A25700000
    3 3/4"0.344"0.189"3/32"
    Standard
    8Partially ThreadedThread Cutting172590000A26500000
    4"0.344"0.189"3/32"
    Standard
    13Partially ThreadedThread Cutting172590000A31400000
     
    No. 12
    2"0.43"0.203"7/64"
    Standard
    11Partially ThreadedThread Cutting172590000A6120000
    2 1/2"0.43"0.203"7/64"
    Standard
    7Partially ThreadedThread Cutting172590000A60100000
    4"0.43"0.203"7/64"
    Standard
    7Partially ThreadedThread Cutting171090000A61600000
    4 1/2"0.43"0.203"7/64"
    Standard
    7Partially ThreadedThread Cutting171090000A62200000
    5 1/2"0.43"0.203"7/64"
    Standard
    11Partially ThreadedThread Cutting171090000A6130000
    6"0.43"0.203"7/64"
    Standard
    7Partially ThreadedThread Cutting171090000A63300000
     
    No. 14
    2"0.43"0.25"7/64"
    Standard
    10Partially ThreadedThread Cutting172590000A71100000
    2 1/2"0.43"0.25"7/64"
    Standard
    10Partially ThreadedThread Cutting171090000A7120000
    3"0.43"0.25"7/64"
    Standard
    10Partially ThreadedThread Cutting171090000A7130000
    3 1/2"0.43"0.25"7/64"
    Standard
    7Partially ThreadedThread Cutting171090000A74400000
    4"0.43"0.25"7/64"
    Standard
    7Partially ThreadedThread Cutting171090000A74900000
    4 1/2"0.43"0.25"7/64"
    Standard
    10Partially ThreadedThread Cutting171090000A71400000
    5"0.43"0.25"7/64"
    Standard
    7Partially ThreadedThread Cutting171090000A75500000
    6"0.43"0.25"7/64"
    Standard
    10Partially ThreadedThread Cutting17590000A7150000
     
    316 Stainless Steel
     
    No. 6
    1 1/4"0.344"0.197"1/16"
    Standard
    18Partially ThreadedThread Cutting175090000A4010000
    1 5/8"0.344"0.197"1/16"
    Standard
    18Partially ThreadedThread Cutting175090000A4020000
    2"0.344"0.197"1/16"
    Standard
    18Partially ThreadedThread Cutting175090000A4030000
     
    No. 7
    1 5/8"0.23"0.125"1/16"
    Narrow
    16Partially ThreadedThread Cutting175090076A71000000
    2 1/4"0.23"0.125"1/16"
    Narrow
    16Partially ThreadedThread Cutting172590076A72000000
    3"0.23"0.125"1/16"
    Narrow
    16Partially ThreadedThread Cutting172590076A73000000
     
    No. 8
    1 1/4"0.344"0.192"5/64"
    Standard
    15Partially ThreadedThread Cutting175090000A28100000
    1 1/2"0.344"0.192"5/64"
    Standard
    15Partially ThreadedThread Cutting175090000A4040000
    1 5/8"0.344"0.192"5/64"
    Standard
    15Partially ThreadedThread Cutting175090000A29000000
    2"0.344"0.192"5/64"
    Standard
    15Partially ThreadedThread Cutting175090000A29100000
    2 1/4"0.344"0.192"5/64"
    Standard
    15Partially ThreadedThread Cutting175090000A40500000
    3"0.344"0.192"5/64"
    Standard
    15Partially ThreadedThread Cutting172590000A4060000
     
    No. 10
    1 5/8"0.344"0.189"3/32"
    Standard
    13Partially ThreadedThread Cutting172590000A4070000
    2 1/2"0.344"0.189"3/32"
    Standard
    13Partially ThreadedThread Cutting172590000A29300000
    3"0.344"0.189"3/32"
    Standard
    13Partially ThreadedThread Cutting172590000A29400000
    3 1/2"0.344"0.189"3/32"
    Standard
    13Partially ThreadedThread Cutting172590000A29500000
    4"0.344"0.189"3/32"
    Standard
    13Partially ThreadedThread Cutting171090000A4080000
     
    No. 12
    2"0.43"0.203"7/64"
    Standard
    11Partially ThreadedThread Cutting171090000A4090000
    2 1/2"0.43"0.203"7/64"
    Standard
    11Partially ThreadedThread Cutting172590000A29700000
    3"0.43"0.203"7/64"
    Standard
    11Partially ThreadedThread Cutting172590000A29800000
    4"0.43"0.203"7/64"
    Standard
    11Partially ThreadedThread Cutting171090000A3000000
    4 1/2"0.43"0.203"7/64"
    Standard
    11Partially ThreadedThread Cutting171090000A30300000
    5"0.43"0.203"7/64"
    Standard
    11Partially ThreadedThread Cutting171090000A30500000
     
    No. 14
    3"0.43"0.25"7/64"
    Standard
    10Partially ThreadedThread Cutting171090000A4110000
    4"0.43"0.25"7/64"
    Standard
    10Partially ThreadedThread Cutting17590000A4130000
    5"0.43"0.25"7/64"
    Standard
    10Partially ThreadedThread Cutting17590000A4140000
    6"0.43"0.25"7/64"
    Standard
    10Partially ThreadedThread Cutting17590000A4150000
     

    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
     

    Steel Square-Drive Flat Head Screws for Wood and Composite Wood

    Image of Product. Front orientation. Wood Screws. Steel Square-Drive Flat Head Screws for Wood and Composite Wood.
    The thin head reduces surface damage and leaves a smooth, near-invisible finish on trim, drywall, and other surfaces. These screws have a square drive that handles more torque than slotted and Phillips drives. Their flat head sits flush so they won't snag.
    Drill a pilot hole slightly smaller than the screw to prevent splitting. Length is measured from the top of the head.
    Black Phosphate-Coated Steel—More corrosion resistant than black-oxide steel, these screws are suitable for environments with minimal moisture. They have a dark, matte coating to create a finished look.
    Head
    Lg.
    Dia.
    Ht.
    Drill Bit
    Size
    Flat Head
    Profile
    Approx. Threads
    per In.
    Threading
    Tapping
    Method
    Pkg.
    Qty.
    Pkg.
    Black Phosphate-Coated Steel
     
    No. 6
    1 5/8"0.224"0.135"1/16"
    Narrow
    18Partially ThreadedThread Forming10091520A150000000
    2 1/4"0.224"0.135"1/16"
    Narrow
    18Partially ThreadedThread Forming10091520A16000000
     
    No. 8
    3"0.264"0.155"5/64"
    Narrow
    15Partially ThreadedThread Forming5091520A17100000
     

    Steel Phillips Flat Head Screws for Particleboard and Fiberboard

    Image of Product. Front orientation. Wood Screws. Steel Phillips Flat Head Screws for Particleboard and Fiberboard.
    Deep, sharp, and widely spaced threads cut into workpieces without splitting them, while the head sits flush to prevent snags. These domed-head screws are often used on particleboard, medium-density fiberboard (MDF), and hardboard such as Masonite. The Phillips drive handles enough torque to drive into most kinds of wood without slipping.
    Length is measured from under the head.
    Black-Oxide Steel—Typically chosen for their appearance, these screws have a dark, matte coating to create a finished look. They offer minimal corrosion resistance, so they're best for dry environments.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Head
    Lg.
    Dia.
    Ht.
    Drill Bit
    Size
    Countersink
    Angle
    Flat Head
    Profile
    Approx. Threads
    per In.
    Threading
    Tapping
    Method
    Pkg.
    Qty.
    Pkg.
    Black-Oxide Steel
     
    No. 6
    1/2"0.279"0.083"1/16"
    82°
    Standard
    13Fully ThreadedThread Forming10090252A245000000
    5/8"0.279"0.083"1/16"
    82°
    Standard
    13Fully ThreadedThread Forming10090252A2460000
    3/4"0.279"0.083"1/16"
    82°
    Standard
    13Fully ThreadedThread Forming10090252A1040000
    1"0.279"0.083"1/16"
    82°
    Standard
    13Fully ThreadedThread Forming10090252A10600000
    1 1/8"0.279"0.083"1/16"
    82°
    Standard
    13Partially ThreadedThread Forming10090252A2470000
    1 1/4"0.279"0.083"1/16"
    82°
    Standard
    13Partially ThreadedThread Forming10090252A10800000
    1 1/2"0.279"0.083"1/16"
    82°
    Standard
    13Partially ThreadedThread Forming10090252A11000000
     
    No. 8
    1/2"0.332"0.1"5/64"
    82°
    Standard
    11Fully ThreadedThread Forming10090252A2480000
    5/8"0.332"0.1"5/64"
    82°
    Standard
    11Fully ThreadedThread Forming10090252A2490000
    3/4"0.332"0.1"5/64"
    82°
    Standard
    11Fully ThreadedThread Forming10090252A1110000
    1"0.332"0.1"5/64"
    82°
    Standard
    11Fully ThreadedThread Forming10090252A11200000
    1 1/8"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming10090252A2500000
    1 1/4"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming10090252A11400000
    1 3/8"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming10090252A2510000
    1 1/2"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming10090252A11500000
    1 5/8"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming10090252A11600000
    1 3/4"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming10090252A25200000
    2"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming10090252A11800000
    2 1/4"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming10090252A11900000
    2 1/2"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming5090252A25300000
    2 3/4"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming5090252A25400000
    3"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming5090252A25500000
    3 1/8"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming5090252A25600000
     
    No. 9
    3/4"0.358"0.108"45 Ga.
    82°
    Standard
    10Fully ThreadedThread Forming10090252A2570000
    1"0.358"0.108"45 Ga.
    82°
    Standard
    10Fully ThreadedThread Forming10090252A25800000
    1 1/4"0.358"0.108"45 Ga.
    82°
    Standard
    10Partially ThreadedThread Forming10090252A25900000
    1 1/2"0.358"0.108"45 Ga.
    82°
    Standard
    10Partially ThreadedThread Forming10090252A26000000
    1 3/4"0.358"0.108"45 Ga.
    82°
    Standard
    10Partially ThreadedThread Forming5090252A2610000
    2 1/2"0.358"0.108"45 Ga.
    82°
    Standard
    10Partially ThreadedThread Forming5090252A23200000
    3"0.358"0.108"45 Ga.
    82°
    Standard
    10Partially ThreadedThread Forming5090252A23400000
     
    No. 10
    3/4"0.385"0.116"3/32"
    82°
    Standard
    9Fully ThreadedThread Forming10090252A26200000
    1"0.385"0.116"3/32"
    82°
    Standard
    9Fully ThreadedThread Forming10090252A23500000
    1 1/4"0.385"0.116"3/32"
    82°
    Standard
    9Partially ThreadedThread Forming10090252A23700000
    1 1/2"0.385"0.116"3/32"
    82°
    Standard
    9Partially ThreadedThread Forming10090252A23900000
    1 3/4"0.385"0.116"3/32"
    82°
    Standard
    9Partially ThreadedThread Forming5090252A26300000
    2"0.385"0.116"3/32"
    82°
    Standard
    9Partially ThreadedThread Forming5090252A24200000
    2 1/2"0.385"0.116"3/32"
    82°
    Standard
    9Partially ThreadedThread Forming5090252A24400000
    3"0.385"0.116"3/32"
    82°
    Standard
    9Partially ThreadedThread Forming2590252A26400000
     
    Zinc-Plated Steel
     
    No. 4
    5/8"0.225"0.067"3/64"
    82°
    Standard
    14Fully ThreadedThread Forming10097196A1010000
     
    No. 5
    1/2"0.252"0.075"1/16"
    82°
    Standard
    14Fully ThreadedThread Forming10097196A1020000
    5/8"0.252"0.075"1/16"
    82°
    Standard
    14Fully ThreadedThread Forming10097196A10300000
     
    No. 6
    7/16"0.279"0.083"1/16"
    82°
    Standard
    13Fully ThreadedThread Forming10097196A10400000
    1/2"0.279"0.083"1/16"
    82°
    Standard
    13Fully ThreadedThread Forming10097196A1050000
    5/8"0.279"0.083"1/16"
    82°
    Standard
    13Fully ThreadedThread Forming10097196A1060000
    3/4"0.279"0.083"1/16"
    82°
    Standard
    13Fully ThreadedThread Forming10097196A10700000
    1"0.279"0.083"1/16"
    82°
    Standard
    13Fully ThreadedThread Forming10097196A10800000
    1 1/4"0.279"0.083"1/16"
    82°
    Standard
    13Partially ThreadedThread Forming10097196A10900000
    1 1/2"0.279"0.083"1/16"
    82°
    Standard
    13Partially ThreadedThread Forming10097196A11000000
     
    No. 7
    5/8"0.305"0.091"49 Ga.
    82°
    Standard
    12Fully ThreadedThread Forming10097196A11100000
     
    No. 8
    5/8"0.332"0.1"5/64"
    82°
    Standard
    11Fully ThreadedThread Forming10097196A11200000
    3/4"0.332"0.1"5/64"
    82°
    Standard
    11Fully ThreadedThread Forming10097196A11300000
    1"0.332"0.1"5/64"
    82°
    Standard
    11Fully ThreadedThread Forming10097196A11400000
    1 1/4"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming5097196A11500000
    1 1/2"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming5097196A1160000
    1 5/8"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming5097196A1170000
    1 3/4"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming5097196A11800000
    2"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming5097196A1190000
    2 1/2"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming2597196A1200000
    3"0.332"0.1"5/64"
    82°
    Standard
    11Partially ThreadedThread Forming2597196A1210000
     

    Stainless Steel Phillips Flat Head Screws for Plywood and Oriented Strand Board

    Image of Product. Front orientation. Wood Screws. Stainless Steel Phillips Flat Head Screws for Plywood and Oriented Strand Board.
    Serrated threads on these rust-resistant screws cut through wood fibers to minimize splitting. They're often used with plywood and oriented strand board (OSB) for exterior panels. They also won't corrode from moisture or chemically treated wood. The flat head sits flush, so you won't need to worry about snags. The Phillips drive handles enough torque to drive into most kinds of wood without slipping.
    Length is measured from under the head.
    316 Stainless Steel—Superior to 18-8 stainless steel, these screws won't degrade when exposed to harsh weather, salt water, and most chemicals.
    Head
    Lg.
    Dia.
    Ht.
    Drill Bit
    Size
    Countersink
    Angle
    Flat Head
    Profile
    Approx. Threads
    per In.
    Threading
    Tapping
    Method
    Pkg.
    Qty.
    Pkg.
    316 Stainless Steel
     
    No. 6
    1/2"0.262"0.134"1/16"
    69°
    Standard
    18Fully ThreadedThread Forming10093360A105000000
    3/4"0.262"0.134"1/16"
    69°
    Standard
    18Fully ThreadedThread Forming10093360A11000000
    1"0.262"0.134"1/16"
    69°
    Standard
    18Fully ThreadedThread Forming5093360A11500000
     
    No. 8
    3/4"0.312"0.134"5/64"
    83°Standard
    15Fully ThreadedThread Forming10093360A12500000
    1"0.312"0.134"5/64"
    83°Standard
    15Fully ThreadedThread Forming5093360A13000000
    1 1/4"0.312"0.134"5/64"
    82°
    Standard
    18Partially ThreadedThread Forming1593360A71100000
    1 1/2"0.302"0.134"5/64"
    82°
    Standard
    18Partially ThreadedThread Forming1593360A21100000
     
    No. 10
    1"0.347"0.13"3/32"
    88°
    Standard
    16Fully ThreadedThread Forming1593360A21200000
    1 1/2"0.345"0.14"3/32"
    88°
    Standard
    13Partially ThreadedThread Forming5093360A41500000
     

    Steel Phillips Flat Head Screws for Wood and Composite Wood

    Image of Product. Front orientation. Wood Screws. Steel Phillips Flat Head Screws for Wood and Composite Wood.
    Fasten these screws flush into wood decking and fencing. Also known as deck screws, their trumpet shape spreads pressure evenly to prevent splitting and surface damage. The flat head sits flush, so you won't need to worry about snags. The Phillips drive handles enough torque to screw into most kinds of wood without slipping.
    Drill a pilot hole slightly smaller than the screw to prevent splitting. Length is measured from the top of the head.
    Corrosion-Resistant-Coated Steel—Resist rust at the level of stainless steel. This coating has been tested against extreme standards for wet and outdoor environments, including 500 hours of salt spray.
    Head
    Lg.
    Dia.
    Ht.
    Drill Bit
    Size
    Flat Head
    Profile
    Approx. Threads
    per In.
    Threading
    Tapping
    Method
    Pkg.
    Qty.
    Pkg.
    Corrosion-Resistant-Coated Steel
     
    No. 6
    1"0.328"0.188"5/64"
    Standard
    9Partially ThreadedThread Forming30090095A74000000
    1 1/4"0.347"0.219"1/16"
    Standard
    18Fully ThreadedThread Forming24590095A4140000
    1 5/8"0.347"0.219"1/16"
    Standard
    18Fully ThreadedThread Forming20090095A4160000
     
    No. 7
    2"0.323"0.219"1/16"
    Standard
    18Partially ThreadedThread Forming16090095A4180000
    2 1/2"0.319"0.219"5/64"
    Standard
    9Partially ThreadedThread Forming3590095A7300000
     
    No. 8
    2 1/2"0.363"0.219"5/64"
    Standard
    15Partially ThreadedThread Forming9090095A4320000
    3"0.363"0.219"5/64"
    Standard
    15Partially ThreadedThread Forming8090095A4330000
     
    No. 10
    3 1/2"0.363"0.219"3/32"
    Standard
    13Partially ThreadedThread Forming5090095A4380000
    4"0.363"0.219"3/32"
    Standard
    13Partially ThreadedThread Forming5090095A4420000
    5"0.342"0.188"5/64"
    Standard
    9Partially ThreadedThread Forming3590095A75000000
    6"0.342"0.188"5/64"
    Standard
    9Partially ThreadedThread Forming3090095A76000000
     

    Sealing Screws for Wood and Composite Wood

    Image of Product. Front orientation. Wood Screws. Sealing Screws for Wood and Composite Wood.
    Prevent rot in roofs, decks, and outdoor posts. The rubber-backed washer in these screws keeps fluid out of fastened joints. They're made of stainless steel, so they won't degrade from chemically treated wood, such as ACQ-treated (arsenic-free) lumber. Also known as trim head screws, they exert less pressure on surfaces to curb splitting and distortion. The square drive handles more torque than slotted and Phillips drives, so it's less likely to slip.
    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
    Washer
    Lg.
    Dia.
    Ht.
    Drill Bit
    Size
    Flat Head
    Profile
    Approx. Threads
    per In.
    Threading
    OD
    Thk.
    Tapping
    Method
    Tapping
    Screw Type
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel with Stainless Steel and Rubber Washer
     
    No. 7
    1"0.23"0.125"1/16"
    Standard
    16Partially Threaded0.63"0.2"Thread Cutting172591540A100000000
    1 5/8"0.23"0.125"1/16"
    Standard
    16Partially Threaded0.63"0.2"Thread Cutting172591540A20000000
    2 1/4"0.23"0.125"1/16"
    Standard
    16Partially Threaded0.63"0.2"Thread Cutting171091540A30000000
    3"0.23"0.125"1/16"
    Standard
    16Partially Threaded0.63"0.2"Thread Cutting171091540A40000000
     

    Steel Square/Phillips Flat Head Screws for Plywood and Oriented Strand Board

    Image of Product. Front orientation. Wood Screws. Steel Square/Phillips Flat Head Screws for Plywood and Oriented Strand Board.
    Image of Specification. Front orientation. Square/Phillips Drive.

    Square/Phillips

    Drive

    Serrated threads cut through wood fibers of plywood and oriented strand board (OSB) to minimize splitting, and the flat head deters snags. These screws have a combination drive, so you can use Phillips drivers to tighten them or square drivers if you need more torque.
    Length is measured from under the head.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Head
    Lg.
    Dia.
    Ht.
    Drill Bit
    Size
    Countersink
    Angle
    Flat Head
    Profile
    Approx. Threads
    per In.
    Threading
    Tapping
    Method
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
     
    No. 6
    1/2"0.3"0.1"1/16"
    90°
    Standard
    12Fully ThreadedThread Forming5091550A31600000
    5/8"0.3"0.1"1/16"
    90°
    Standard
    12Fully ThreadedThread Forming5091550A3010000
    3/4"0.3"0.1"1/16"
    90°
    Standard
    12Fully ThreadedThread Forming4591550A3020000
    1"0.3"0.1"1/16"
    90°
    Standard
    12Fully ThreadedThread Forming4091550A3030000
    1 1/4"0.3"0.1"1/16"
    90°
    Standard
    12Fully ThreadedThread Forming3591550A3040000
    1 1/2"0.3"0.1"1/16"
    90°
    Standard
    12Fully ThreadedThread Forming3091550A3050000
     
    No. 8
    5/8"0.3"0.11"5/64"
    90°
    Standard
    11Fully ThreadedThread Forming4091550A3180000
    3/4"0.3"0.11"5/64"
    90°
    Standard
    11Fully ThreadedThread Forming3591550A3080000
    1"0.3"0.11"5/64"
    90°
    Standard
    11Fully ThreadedThread Forming7591550A30700000
    1 1/4"0.3"0.11"5/64"
    90°
    Standard
    11Fully ThreadedThread Forming3091550A3190000
    1 1/2"0.3"0.11"5/64"
    90°
    Standard
    11Fully ThreadedThread Forming2591550A3090000
    1 3/4"0.3"0.11"5/64"
    90°
    Standard
    11Fully ThreadedThread Forming2091550A3210000
    2"0.3"0.11"5/64"
    90°
    Standard
    11Fully ThreadedThread Forming2091550A3170000
    2 1/2"0.3"0.11"5/64"
    90°
    Standard
    11Partially ThreadedThread Forming13391550A32200000
     
    No. 10
    3/4"0.4"0.13"3/32"
    90°
    Standard
    8 1/2Fully ThreadedThread Forming2591550A3110000
    1"0.4"0.13"3/32"
    90°
    Standard
    8 1/2Fully ThreadedThread Forming2091550A3120000
    1 1/4"0.4"0.13"3/32"
    90°
    Standard
    8 1/2Fully ThreadedThread Forming2091550A3130000
    1 1/2"0.4"0.13"3/32"
    90°
    Standard
    8 1/2Fully ThreadedThread Forming13091550A31400000
    2"0.4"0.13"3/32"
    90°
    Standard
    8 1/2Fully ThreadedThread Forming10591550A31500000
    2 1/2"0.4"0.13"3/32"
    90°
    Standard
    8 1/2Fully ThreadedThread Forming8891550A32300000
    3"0.4"0.13"3/32"
    90°
    Standard
    8 1/2Partially ThreadedThread Forming7291550A32400000
    3 1/2"0.4"0.13"3/32"
    90°
    Standard
    8 1/2Partially ThreadedThread Forming5791550A32500000
     

    Stainless Steel Square/Phillips Flat Head Screws for Plywood and Oriented Strand Board

    Image of Product. Front orientation. Wood Screws. Stainless Steel Square/Phillips Flat Head Screws for Plywood and Oriented Strand Board.
    Image of Specification. Front orientation. Square/Phillips Drive.

    Square/Phillips

    Drive

    Fasten plywood and oriented strand board your way with these rust-resistant screws. They have a combination drive, so you can use Phillips drivers to tighten them or square drivers if you need more torque. The flat head sits flush to prevent snags, while serrated threads cut through wood fibers to minimize splitting. Often used in exterior panels, they won't degrade from moisture or chemically treated wood.
    Length is measured from under 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
    Countersink
    Angle
    Flat Head
    Profile
    Approx. Threads
    per In.
    Threading
    Tapping
    Method
    Pkg.
    Qty.
    Pkg.
    18-8 Stainless Steel
     
    No. 9
    1 1/2"0.346"0.143"5/64"
    82°
    Standard
    14Partially ThreadedThread Forming5090027A211000000
     
    No. 10
    2 1/2"0.348"0.134"3/32"
    82°
    Standard
    13Partially ThreadedThread Forming2590027A25000000
    3"0.348"0.134"3/32"
    82°
    Standard
    13Partially ThreadedThread Forming2590027A25500000
     
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