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BS 3692:2014 ISO metric precision hexagon bolts, screws and nuts - Specification
Gives the general dimensions and tolerances of precision hexagon bolts, screws and nuts with ISO metric threads in diameters from 1.6mm to 68mm inclusive.
Supersedes BS 3692:2001. First published December 1963. Second edition, August 1967. Third edition, February 2001. Fourth (present) edition, October 2014. Came into effect 31 October 2014.
British Standards Institution
With over 100 years of experience the British Standards Institute is recognised as the UK’s National standards body. Their committees work with the manufacturing and service industries, government, businesses and consumers to facilitate the production of British, European and International standards.
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