BS 1981:1972
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Specification for Unified machine screws and machine screw nuts
Hardcopy
31-08-1991
English
31-07-1972
Important note : All end users must be registered with an Account prior to user licenses being assigned.Materials, dimensions and tolerances for slotted and recessed screws with countersunk, pan, raised cheese and raised countersunk heads and plain slotted hexagon head screws. Overall diameter range No. 0 to ¾ in but varies according to head style. Metric slot widths included as an appendix.
| Committee |
FME/9
|
| DevelopmentNote |
Replaces BS 3155: 1960
|
| DocumentType |
Standard
|
| Pages |
0
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| BS 826:1978 | Specification for steel single tier bolted shelving (angle upright type) |
| BS 3555:1988 | Specification for ring wrenches |
| BS 6605:1990 | Specification for cross recesses for screws |
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