Industrial Grade Thread Plug Gauges are available in metric, UNF, UNC, BSW, BSF, BSP, BSPT, NPT, NPTF cycle threads, acme, buttress and trapezoidal. These Plug Gauges come in taper thread plug gauges also. These Plug Gauges are made to offer accurate measurement. These Industrial Grade Thread Plug Gauges are designed in such a way that they ensure longer working life.