Screw Checker

Screw Checker (SKU: SCG211)

  • $28.36

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Product Description


  • Machine screws
  • Bolts
  • Up to 5/16 diameter
  1. Pass screw through smallest hole to determine size.
  2. Screw into threaded holes to determine thread pitch.
  3. Numbers on the face indicate: screw size, clearance drill size, tap drill size, tap series, (n.c., n.f., n.s.)

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