Thread plug gauges (GO/NO-GO) are reference gauges used to verify internal threads in tapped holes against specified tolerances. They enable fast pass/fail inspection without measuring pitch diameter, supporting consistent quality control.
Available in metric and inch standards, for various pitches and tolerance classes, with wear-resistant surfaces and clear GO/NO-GO marking. Options from Johs & Insize for repeatable results in production environments.
Well suited for machine shops, CNC machining and assembly lines where thread interchangeability is critical.
