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Thread gauges

Thread gauge

Thread gauges



Inexpensive plastic gauges for measuring external thread.

Internally threaded screw gauge

Internally threaded screw gauges

Solid plastic US and Metric screw/bolt thread gauge. Includes sizes #0 - 3/4" (coarse and fine) and 1.6mm - 16mm.

Thread Detective® Metal

Thread Detective - Metal

Premium metal gauges that can measure both external and internal thread.