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    46 Products

    Tamper-Resistant Torx Stainless Steel Rounded Head Drilling Screws

    Image of Product. Front orientation. Tapping Screws. Tamper-Resistant Torx Stainless Steel Rounded Head Drilling Screws.
    Removable only with a tamper-resistant Torx driver, these screws drill and fasten in one step. The deep, six-lobe recess (also known as pin-in-Torx) prevents drivers from slipping and deters unauthorized access. These screws resist corrosion and have a rounded head to create a finished look.
    Length is measured from under the head.
    410 Stainless Steel—Tougher and more wear resistant than other stainless steel screws but less corrosion resistant.
    Power Tools Bits—Pair with your power tools to turn screws more quickly than manual tools.
    Tapping Screws
    Power Tools Bits
    Drill
    Tip
    Head
    Lg.
    Point
    Size
    Lg.
    Dia.
    Ht.
    Max. Drilling
    Thk.
    Tapping
    Screw Type
    Drive
    Size
    Approx. Threads
    per In.
    Pkg.
    Qty.
    Pkg.
    Each
    410 Stainless Steel
     
    No. 8 Screw Size
    1/2"No. 23/16"0.322"0.115"0.098"ABT20182592970A201000007233A6500000
    3/4"No. 23/16"0.322"0.115"0.098"ABT20182592970A20300007233A650000
    1"No. 23/16"0.322"0.115"0.098"ABT20181092970A20500007233A650000
    1 1/4"No. 23/16"0.322"0.115"0.098"ABT20181092970A20800007233A650000
    1 1/2"No. 23/16"0.322"0.115"0.098"ABT20181092970A22700007233A650000
     
    No. 10 Screw Size
    1/2"No. 213/64"0.373"0.133"0.106"ABT25161092970A20900007233A660000
    3/4"No. 213/64"0.373"0.133"0.106"ABT25161092970A21100007233A660000
    1"No. 213/64"0.373"0.133"0.106"ABT25161092970A21300007233A660000
    1 1/4"No. 213/64"0.373"0.133"0.106"ABT25161092970A21600007233A660000
    1 1/2"No. 213/64"0.373"0.133"0.106"ABT25161092970A21800007233A660000
     
    No. 12 Screw Size
    1"No. 39/32"0.425"0.156"0.187"ABT27141092970A22100007233A670000
    1 1/2"No. 39/32"0.425"0.156"0.187"ABT27141092970A22200007233A670000
    2"No. 39/32"0.425"0.156"0.187"ABT27141092970A22300007233A670000
     
    No. 14 Screw Size
    1"No. 311/32"0.492"0.175"0.21"ABT30141092970A22400007233A680000
    1 1/2"No. 311/32"0.492"0.175"0.21"ABT30141092970A22500007233A680000
    2"No. 311/32"0.492"0.175"0.21"ABT30141092970A22600007233A680000
     

    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
     

    Tamper-Resistant Torx Steel Flat Head Drilling Screws

    Image of Product. Front orientation. Tapping Screws. Tamper-Resistant Torx Steel Flat Head Drilling Screws.
    Drill and fasten components with countersunk holes and deter tampering. These screws have a deep, six-lobe recess (also known as pin-in-Torx) that turns only with a tamper-resistant Torx driver. Their flat, beveled head sits flush with surfaces.
    Length is measured from the top of the head.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Power Tools Bits—Pair with your power tools to turn screws more quickly than manual tools.
    Tapping Screws
    Power Tools Bits
    Drill
    Tip
    Head
    Lg.
    Point
    Size
    Lg.
    Dia.
    Ht.
    Max. Drilling
    Thk.
    Tapping
    Screw Type
    Drive
    Size
    Approx. Threads
    per In.
    Countersink
    Angle
    Flat Head
    Profile
    Pkg.
    Qty.
    Pkg.
    Each
    Zinc-Plated Steel
     
    No. 8 Screw Size
    1/2"No. 23/16"0.312"0.1"0.098"BT151882°
    Standard
    5094625A1110000007233A6400000
    3/4"No. 23/16"0.312"0.1"0.098"BT151882°
    Standard
    5094625A112000007233A640000
    1"No. 23/16"0.312"0.1"0.098"BT151882°
    Standard
    5094625A113000007233A640000
    1 1/4"No. 23/16"0.312"0.1"0.098"BT151882°
    Standard
    5094625A315000007233A640000
    1 1/2"No. 23/16"0.312"0.1"0.098"BT151882°
    Standard
    5094625A114000007233A640000
     
    No. 10 Screw Size
    1/2"No. 23/16"0.362"0.081"0.098"BT201682°
    Standard
    5094625A121000007233A650000
    3/4"No. 31/4"0.362"0.116"0.15"BT201682°
    Standard
    5094625A423000007233A650000
    1"No. 31/4"0.362"0.116"0.15"BT201682°
    Standard
    5094625A122000007233A650000
    1 1/2"No. 31/4"0.362"0.116"0.15"BT201682°
    Standard
    5094625A425000007233A650000
    2"No. 31/4"0.362"0.116"0.15"BT201682°
    Standard
    2594625A427000007233A650000
     
    No. 14 Screw Size
    1"No. 311/32"0.477"0.153"0.21"BT271482°
    Standard
    2594625A131000007233A670000
    1 1/2"No. 311/32"0.477"0.153"0.21"BT271482°
    Standard
    2594625A132000007233A670000
    2"No. 311/32"0.477"0.153"0.21"BT271482°
    Standard
    2594625A133000007233A670000
     

    Steel Torx Flat Head Drilling Screws for Joining Wood to Sheet Metal

    Image of Product. Front orientation. Wood Screws. Steel Torx Flat Head Drilling Screws for Joining Wood to Sheet Metal.
    These Torx screws join wood to sheet metal by drilling, tapping, and fastening in one go. Their self-drilling tip clears the way while their threads tap into the material. With a deep six-lobe opening, the Torx drive handles more torque than slotted, Phillips, and hex drives. The flat head deters snags.
    Length is measured from the top of the head.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Head
    Lg.
    Dia.
    Ht.
    Drill Point
    Size
    Drill Tip
    Lg.
    For Wood Thk.
    Range
    For Metal Thk.
    Range
    Flat Head
    Profile
    Approx. Threads
    per In.
    Threading
    Tapping
    Method
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
     
    No. 10
    1"0.48"0.136"No. 31/4"0.25" to 0.375"0.11" to 0.21"Standard
    16Fully ThreadedThread Forming5090425A460000000
    1 1/4"0.48"0.136"No. 31/4"0.375" to 0.5"0.11" to 0.21"Standard
    16Fully ThreadedThread Forming5090425A46100000
     

    Steel Torx Serrated-Flange Hex Head Drilling Screws

    Image of Product. Front orientation. Tapping Screws. Steel Torx Serrated-Flange Hex Head Drilling Screws.
    Two ways to install—use a Torx driver in the recess or grip the hex head with a nutdriver for more torque. These screws drill and fasten in one step. The serrated flange grips surfaces to resist mild vibration and spreads the load to prevent crushing thin metal.
    Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.
    Drill
    Tip
    Head
    Lg.
    Point
    Size
    Lg.
    Wd.
    Ht.
    Flange
    Dia.
    Max. Drilling
    Thk.
    Tapping
    Screw Type
    Drive
    Size
    Approx. Threads
    per In.
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
     
    No. 8 Screw Size
    1/2"No. 23/16"0.25"0.197"0.37"0.098"BSDT20185094425A510000000
    3/4"No. 23/16"0.25"0.197"0.37"0.098"BSDT20182594425A5300000
     
    No. 10 Screw Size
    3/4"No. 31/4"0.313"0.216"0.445"0.15"BSDT25165094425A6400000
    1"No. 31/4"0.313"0.216"0.445"0.15"BSDT25162594425A6600000
     
    No. 12 Screw Size
    3/4"No. 39/32"0.313"0.261"0.445"0.187"BSDT27145094425A77000000
    1"No. 39/32"0.313"0.261"0.445"0.187"BSDT27142594425A79000000
     
    1/4" Screw Size
    3/4"No. 35/16"0.375"0.303"0.55"0.21"BSDT30142594425A81000000
    1"No. 35/16"0.375"0.303"0.55"0.21"BSDT30142594425A83000000
     
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