Screw Thread Gage

ITEM # 714

Screw Thread Gage

The #714 Screw Thread Gage quickly identifies thread pitch, tap size and drill bit size for machine and wood screws, bolts and common rivets and cotter pins up to 5/16 in. across.


Best For:



  • Threaded holes indicate threads per inch; unthreaded holes indicate size by number and fractions of an inch
  • 3 in. ruler for measuring screw lengths
  • Made of durable engineering plastic
  • Specifications


    Prop 65

    ⚠ WARNING: This product can expose you to chemicals including Nickel (metallic), which is known to the State of California to cause cancer. For more information, go to