Short Run Pro - Manufacturer of metal parts, custom metal brackets and custom metal fabrication services provider.
  • Wood Screw Guide

    Short Run Pro American Wood Screw Guide

    The chart below will give the user the various dimensions for American Wood screws. All dimensions are in inches. The shank pilot hole is the one which will clear the thickest part of the screw body.

    Screwgauge Body dia. Shank pilot hole Pilot hole in softwood Pilot hole in hardwood
    0 0.060 116 164 132
    1 0.073 564 132 132
    2 0.086 332 132 364
    3 0.099 764 364 116
    4 0.112 764 364 116
    5 0.125 18 116 564
    6 0.138 964 116 564
    7 0.151 532 116 332
    8 0.164 1164 564 332
    9 0.177 316 564 764
    10 0.190 316 332 764
    11 0.203 1364 332 18
    12 0.216 732 764 18
    14 0.242 14 764 964
    16 0.268 1764 964 532
    18 0.294 1964 964 316
    20 0.320 2164 1164 1364
    24 0.372 38 316 732
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