BS 1580:Parts 1 and 2:1962
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 screw threads Diameters ¼ in and larger
Hardcopy , PDF
English
15-09-1962
31-08-2009
Unified coarse thread series UNC ¼ in to 4 in diameter; Unified fine thread series UNF ¼ in to 1½ in; Unified extra fine thread series UNEF ¼ in to 1$9K in. Standard constant pitch series for a graduated system of diameter/pitch combinations. Basic and design forms. Tables of basic dimensions, limits and tolerances for all diameter/pitch combinations in UNC, UNF, UNEF and standard constant pitch series given for the three classes of internal and external threads. Bases of tolerances for Unified screw threads; five sizes below ¼ in diameter for attachment purposes and for general use in aircraft appended. Evolved through international discussions between UK, Canada, USA. In accord with corresponding sections of American standard ASA B1.1-1960.
| Committee |
FME/9
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| DocumentType |
Standard
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| Pages |
0
|
| PublisherName |
British Standards Institution
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| Status |
Superseded
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| SupersededBy |
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