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    20 Products
    About Tapping Screws
    industrial info icon

    Compare drilling, pointed, thread-forming, and thread-cutting tips to find the best choice for your material.

    Steel Oversized Phillips Flanged Rounded Head Screws for Sheet Metal

    Image of Product. Front orientation. Tapping Screws. Steel Oversized Phillips Flanged Rounded Head Screws for Sheet Metal.
    With a wide, flanged head to distribute pressure, these screws prevent crushing or dimpling sheet metal. Their pointed tip starts a hole in sheets up to 0.025" thick, but for thicker material you’ll need to drill first. The Phillips drive handles enough torque to keep drivers from slipping.
    Length is measured from under the head.
    Black Epoxy-Coated Steel—With a dark, multilayer finish, these screws resist corrosion in wet and outdoor environments.
    Lg.
    Head
    Ht.
    Flange
    Dia.
    Tapping
    Screw Type
    Drive
    Size
    Approx. Threads
    per In.
    Drill Bit
    Size
    Pkg.
    Qty.
    Pkg.
    Black Epoxy-Coated Steel
     
    No. 6 Screw Size
    1/2"0.116"0.39"ANo. 21832 Ga.
    10090930A14800000
     
    No. 8 Screw Size
    1/2"0.116"0.425"ANo. 21529 Ga.
    10090930A1940000
    5/8"0.116"0.425"ANo. 21529 Ga.
    10090930A19600000
    3/4"0.116"0.425"ANo. 21529 Ga.
    10090930A19700000
    1"0.116"0.425"ANo. 21529 Ga.
    10090930A19900000
    1 1/4"0.116"0.425"ANo. 21529 Ga.
    5090930A2010000
    1 1/2"0.116"0.425"ANo. 21529 Ga.
    5090930A2030000
     
    No. 10 Screw Size
    3/4"0.132"0.482"ANo. 21221 Ga.
    5090930A2450000
    1"0.132"0.482"ANo. 21221 Ga.
    5090930A2470000
    1 1/4"0.132"0.482"ANo. 21221 Ga.
    5090930A24900000
     

    Drilling Screws for Joining Insulation to Metal

    Image of Product. Front orientation. Tapping Screws. Drilling Screws for Joining Insulation to Metal.
    Image of Product. Front orientation. Washers. Polypropylene Washers.
    Image of Product. Steel Washer. Front orientation. Washers. Steel Washers.

    Polypropylene

    Washers

    Steel

    Washer

    Secure flat roof insulation and membrane materials. These screws have an oversized shank and threads to keep panels from lifting up in high wind. They drill and fasten in a single step, saving time and effort. The small point penetrates light gauge steel, oriented strand board (OSB), and plywood.
    Length is measured from under the head.
    Polypropylene Washers—Distribute the load to prevent screws from pulling through insulation.
    Steel Washers—More durable than plastic, these washers prevent screws from pulling through insulation. Their hexagon shape works with feeding tools that speed up large-scale roofing jobs.
    Tapping Screws
    Polypropylene
    Washers
    Steel Washers
    Head
    Lg.
    Dia.
    Ht.
    Max. Drilling
    Thk.
    Drive
    Size
    Approx. Threads
    per In.
    Certification
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    Pkg.
    Qty.
    Pkg.
    Black Epoxy-Coated Steel
     
    No. 15 Screw Size
    2"0.435"0.118"0.047"No. 313FM Approved
    5090694A8140000002590320A3800000005090320A350000000
    3"0.435"0.118"0.047"No. 313FM Approved
    2590694A817000002590320A380000005090320A35000000
    4"0.435"0.118"0.047"No. 313FM Approved
    2590694A820000002590320A380000005090320A35000000
    5"0.435"0.118"0.047"No. 313FM Approved
    2090694A823000002590320A380000005090320A35000000
    6"0.435"0.118"0.047"No. 313FM Approved
    1090694A82600002590320A380000005090320A35000000
    7"0.435"0.118"0.047"No. 313FM Approved
    1090694A829000002590320A380000005090320A35000000
    8"0.435"0.118"0.047"No. 313FM Approved
    1090694A831000002590320A380000005090320A35000000
    10"0.435"0.118"0.047"No. 313FM Approved
    590694A834000002590320A380000005090320A35000000
     
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