BS 3172-1:1959

Screw threads for spectacle frames. Specification for screw threads of Unified form for spectacle frames including screwing taps and screw gauges.

NORM herausgegeben am 30.9.1980

The information about the standard:

Designation standards: BS 3172-1:1959
Note: UNGÜLTIG
Publication date standards: 30.9.1980
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategorie: Technische Normen BS