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BSI BS 1769:1951

Specification. Unified black hexagon bolts, screws, nuts (UNC & UNF threads). Heavy series
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BSI BS 1769:1951

Specification. Unified black hexagon bolts, screws, nuts (UNC & UNF threads). Heavy series

PUBLISH DATE 1951
PAGES 20
BSI BS 1769:1951

This British Standard relates to the Heavy Series of Unified black hexagon bolts, screws and nuts having Unified screw threads in a range of nominal sizes from ½ in. to 2 in. inclusive.

NOTE It is considered that the range of nominal sizes included in this standard is adequate for most of the applications for which this series is likely to be employed, but for the convenience of users requiring larger sizes, the formulae from which the proportions for bolt heads and nuts are derived are given in Appendix A.

Dimensions, general requirements for sizes ½ in to 2 in. Dimensions of bolts, screws, ordinary nuts, lock nuts, slotted nuts, bolts faced under the head and machined on shank, machined nuts. Formulae for calculation of dimensions for bolts, screw heads, nuts in intermediate sizes, and sizes larger than 2 in.
SDO BSI: British Standards Institution
Document Number 1769
Publication Date Sept. 24, 1951
Language en - English
Page Count
Revision Level
Supercedes
Committee FME/9
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