BSI - BS 325
Specification for Black cup and countersunk bolts and nuts
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| Organization: | BSI |
| Publication Date: | 17 April 1947 |
| Status: | active |
| Page Count: | 16 |
| ICS Code (Bolts, screws, studs): | 21.060.10 |
| ICS Code (Nuts): | 21.060.20 |
scope:
Nominal sizes ¼ in to 1 in. Dimensions for cup head bolts with square, oval and nibbed shanks, and countersunk headed bolts with square and nibbed shanks for use on steel work and wood work; square and hexagon nuts. Lengths of thread and their tolerances, form of end of bolt shank, quality of steel.
Document History
BS 325
April 17, 1947
Specification for Black cup and countersunk bolts and nuts
Nominal sizes ¼ in to 1 in. Dimensions for cup head bolts with square, oval and nibbed shanks, and countersunk headed bolts with square and nibbed shanks for use on steel work and wood work; square...
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