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    1 Product
    About Tapping Screws
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    Compare drilling, pointed, thread-forming, and thread-cutting tips to find the best choice for your material.

    Steel Flanged Hex Head Drilling Screws

    Image of Product. Front orientation. Tapping Screws. Steel Flanged Hex Head Drilling Screws.
    Save time and effort with screws that drill and fasten in one step. The hex head gives you a firm, high-torque grip with a nutdriver or socket. Screws have a flange under the head that spreads the load to prevent crushing thin metal.
    Length is measured from under the flange. Head height includes the flange.
    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
    Approx. Threads
    per In.
    Pkg.
    Qty.
    Pkg.
    Zinc-Plated Steel
     
    5/16" Screw Size
    1 1/4"No. 313/32"0.5"0.29"0.676"0.220"BSD121090064A70900000
    Flanged Hex Head Drilling Screw, Zinc-Plated Steel, 5/16" Size, 1-1/4" Long
    Pack of 10In stock
     
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