Standard class of fit: Plug gage 7H & ring gauge 7e
Trapezoidal thread is mainly used for transmission (feed and lift) and position adjustment device, it is widely used in machinery industry. Trapezoidal threads also can be used in fastening-connection. Trapezoidal thread is not suited precision transmission thread which has high requirements on transmission accuracy. Visit us:- https://www.gaugestools.com/tr....apezoidal-thread-gau