BSI - BS 3172-1
Screw threads for spectacle frames. Specification for screw threads of Unified form for spectacle frames including screwing taps and screw gauges
inactive, Most Current
| Organization: | BSI |
| Publication Date: | 10 December 1959 |
| Status: | inactive |
| ICS Code (Ophthalmic equipment): | 11.040.70 |
scope:
Includes gauging practice. See BS 1580.
Document History
BS 3172-1
December 10, 1959
Screw threads for spectacle frames. Specification for screw threads of Unified form for spectacle frames including screwing taps and screw gauges
Includes gauging practice. See BS 1580.