Thread plug gauge GO NO-GO is used to check “nuts” ( internal threaded parts). The common design is Taperlock, one end is the GO end, another end is the NOGO end, they are connected together by one handle. but this design is just suited for small sizes. For large sizes, the two ends will be separate. Thread plug gauges are fixed limit gauges, Go end of plug gauges checks major diameter and pitch diameter’s minimum sizes of a threaded parts, No go end of plug gauges checks pitch diameter’s maximum sizes of a threaded parts. Thread gauge GO NOGO is measuring tool for checking tool. These gauges can’t measure out the detailed data of thread. They just can tell a “state”. The thread tested can be accepted or not. Thread plug gauges are fixed limit gauges, Go end of plug gauges checks major diameter and pitch diameter’s minimum sizes of a threaded parts, No go end of plug gauges checks pitch diameter’s maximum sizes of a threaded parts.

M1815P Go NoGo Screw Plug Gauges Metric Description : Double Ended Thread Plug Gauge Go NoGo Style E Size : M18 x 1.5 Class : 6H