Thread plug gauges are GO/NO-GO inspection standards used to verify internal threads in tapped holes against specified tolerances. They enable fast pass/fail checks in quality control without directly measuring pitch or diameter.
Available in metric and inch series, across multiple pitches and tolerance classes, as sets or individual gauges, with hardened and lapped construction and clear identification marking. Options from Insize, Mitutoyo & PCE.
Well suited for machine shops, CNC machining and production lines where repeatability and traceable thread inspection are critical.