Taiwan Provincial Standard of the People's Republic of China
Latest
CNS 536-1991
Scope
This standard is applicable to the limit gauge for thread size inspection (1) of external thread grades 3A, 2A, 1A and internal thread grades 3B, 2B, 1B specified by CNS_Unified Coarse Thread Limit Dimensions and Tolerances [hereinafter referred to as thread] Limit rubrics] and proofreading rubrics (hereinafter referred to as “checking rubrics”). Note (1) If necessary, check the shape of the belly, crest, and valley of the threaded joint, the true roundness of the pitch diameter, and the surface.
CNS 536-1991 history
1991CNS 536-1991 Limit Gages for Unified Fine Screw Threads