Table of Contents

Foreword<br>1 Scope<br>2 Normative references<br>3 Screw threads<br>4 Definitions and tolerances on lengths of screws<br>5 Screwing taps<br>6 Gauges<br>Annex A (informative) - Use and application of screw threads

Abstract

Gives requirements for ISO metric screw threads for use with spectacle frames.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	British Standards Institution
Pages
ISBN
Committee	CH/172
Supersedes	BS 3172(1987) : 1987 BS 3172(1995) : 1995 AMD 9448