Screw gauges. Reference gauges for new thread rings with "go" side. V-thread (angle between the flanks=80 grads)
STANDARD published on 13.1.1961
Designation standards: ČSN 254346
Classification mark: 254346
Catalog number: 2208
Publication date standards: 13.1.1961
The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
Country: Czech technical standard
Category: Technical standards ČSN