BSI BS 3172-2:1980

Withdrawn Revision
Screw threads for spectacle frames -- Specification for screw threads (metric series) for spectacle frames

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BSI BS 3172-2:1980

Screw threads for spectacle frames -- Specification for screw threads (metric series) for spectacle frames

PUBLISH DATE 1980
BSI BS 3172-2:1980

ISO metric screw threads, provision being made for nominal sizes S 0.8 x 0.20, M 1.0 x 0.25, M 1.2 x 0.25, M 1.4 x 0.30 and M 1.6 x 0.35 and for related taps and gauges.

Appendix A gives recommendations for gauging practice.

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