NBN 646-F-1966
The quality standard of channel screws is M or G, and the thread metric system is ISO.

Standard No.

NBN 646-F-1966

Release Date

1966

Published By

BE-NBN

Latest

NBN 646-F-1966

NBN 646-F-1966 history

• 1966 NBN 646-F-1966 The quality standard of channel screws is M or G, and the thread metric system is ISO.