Screw Checker Plastic Gauge Qty (1)

$15.34



Identifies all machine screws, U.S.S. & S.A.E. bolts, wood screws, self-tapping screws, standard size rivets and common cotter pins up to 5/16" diameter. Also includes clearance drill size, tap drill size and tap series information. Instructions included.

  • Model: 14771

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