Plug Thread Gauges are designed for the measurement of female threads such as those found in pre-tapped holes. Products within this range are available in both Go and No-Go varieties.
Metric Thread Gauges
Metric Thread Gauges are available to suit a full range of thread sizes from M1 up to M150 in both metric coarse pitch and metric fine pitch. Both left-hand and right-hand gauges are also available. For more information on ISO metric threads, please see our ISO machine screw thread lookup table.
Imperial Thread Gauges
Imperial Thread Gauges are manufactured to suit UNC and UNF threads from No.1 up to 2 3/4 inches, with both left-hand and right-hand threads available.
Other Thread Gauges
Additional Thread Gauges are available or use with less common thread types such as British BSW and BSF threads, NPT and NPTF pipe threads, and German PG threads. Threa Gauges are even available for the measurement of Trapezoidal Lead Screw threads.
Bespoke Plug Thread Gauges Manufacture
High precision, bespoke manufacture of Plug Thread Gauges to customer specification. State of the art facilities specialising in both small batch prototyping and large scale manufacture.