Taiwan Provincial Standard of the People's Republic of China
Latest
CNS 502-1978
Scope
This standard specifies the metric fine thread; the datum profile, formula and basic dimensions for a pitch of 1.5 mm. Reference 1: This fine thread is the same as ISO 261-1973.
CNS 502-1978 history
1978CNS 502-1978 ISO Metric Fine Screw Threads (Diameters from 12 to 80mm and Pitch 1.5mm)