Taiwan Provincial Standard of the People's Republic of China
Latest
CNS 506-1978
Scope
This standard specifies the metric fine thread; the datum profile, formula and basic dimensions for a pitch of 6 mm. Reference 1: This fine thread is the same as ISO 261-1973.
CNS 506-1978 history
1978CNS 506-1978 ISO Metric Fine Screw Threads (Diameters from 70 to 300 mm and Pitch 6 mm)