
Specification for ISO metric black hexagon bolts, screws and nuts
出版:British Standards Institution

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General dimensions and tolerances of bolts, screws and nuts with ISO metric threads to BS 3643 in diameters from 5 mm to 68 mm. For the convenience of users requiring larger sizes further information is provided in an appendix.
© British Standards Institution 2013
Amendment notes:
AMD 1778 published 15 August 1975
AMD 2690 published 15 August 1978
AMD 8226 published 15 November 1994
ISO 272:1982 - Equivalent
ISO 4759-1:2000 - Equivalent
ISO 885:2000 - Equivalent
ISO 888:1976 - Equivalent