BSI - BS 450
Machine Screws and Machine Screw Nuts (B.S.W. and B.S.F. Threads)
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| Organization: | BSI |
| Publication Date: | 30 June 1958 |
| Status: | active |
| Page Count: | 58 |
| ICS Code (Bolts, screws, studs): | 21.060.10 |
| ICS Code (Nuts): | 21.060.20 |
scope:
Dimensions, tolerances and general requirements for sizes above and below ¼ in. Covers screws of the following types: 90 degrees countersunk and raised countersunk, round, pan, cheese and mushroom with slotted and with recessed heads. Appendices on dimensions of hexagon head screws and hexagon precision nuts in sizes below ¼ inch; flushness gauge for countersunk heads; penetration of standard gauge points for recessed heads; formulae for dimensions; tables of standard sizes.
Document History
BS 450
June 30, 1958
Machine Screws and Machine Screw Nuts (B.S.W. and B.S.F. Threads)
Dimensions, tolerances and general requirements for sizes above and below ¼ in. Covers screws of the following types: 90 degrees countersunk and raised countersunk, round, pan, cheese and mushroom...
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