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sklademVydáno: 1951-03-31
BS 57:1951
Specification. B.A. screws bolts and nuts
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| Označení normy: | BS 57:1951 |
| Počet stran: | 22 |
| Vydáno: | 1951-03-31 |
| ISBN: | 0 580 00920 3 |
| Status: | Standard |
DESCRIPTION
BS 57:1951
This standard BS 57:1951 Specification. B.A. screws bolts and nuts is classified in these ICS categories:
- 21.060.10 Bolts, screws, studs
- 21.060.20 Nuts
Section 1 of this British Standard specifies requirements and dimensions for both ferrous and non-ferrous screws, bolts and nuts.
Heads: cheese, round, countersunk, raised-countersunk, hexagonal; hexagonal nuts, ordinary and locknut; range No. 0 to No. 16 B.A. Standard lengths of screws.