Screw Size
    Screw Size
    No. 10
    No. 11
    No. 12
    1/4"
    For Use In
    For Use In
    Sheet Metal
    Wood
    Thread Size
    Thread Size
    click to learn more about
    For Maximum Wood Thickness
    For Maximum
    Wood Thickness
    0.375"
    0.5"
    0.75"
    1.125"
    1.25"
    1.375"
    1.5"
    1.625"
    1.75"
    2"
    2.25"
    2.5"
    2.625"
    2.75"
    2.875"
    For Maximum Metal Thickness
    For Maximum Metal Thickness
    0.15"
    0.17"
    0.18"
    0.21"
    0.25"
    0.31"
    0.375"
    For Minimum Wood Thickness
    For Minimum Wood Thickness
    0.25"
    0.5"
    0.75"
    1.5"
    Drill Point Size
    Drill Point Size
    No. 2
    No. 3
    No. 4
    For Minimum Metal Thickness
    For Minimum Metal Thickness
    0.04"
    0.06"
    0.11"
    0.13"
    Drill Tip Length
    Drill Tip Length
    1/4"
    5/16"
    3/8"
    7/16"
    1/2"
    3/4"
    13/16"
    7/8"
    1 3/4"
    Drive Size
    Drive Size
    No. 2
    No. 3
    DFARS (Defense Acquisition Regulations Supplement)
    DFARS (Defense Acquisition
    Regulations Supplement)
    Approximate Threads per Inch
    Approximate Threads per Inch
    14
    16
    Minimum Thread Length
    Minimum Thread Length
    1.875"
    2.188"
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