BS 1580-1:2007
Current
The latest, up-to-date edition.
Hardcopy , PDF
English
08-31-2009
Foreword
Section 1: General
1 Scope
2 Normative references
3 Terms and definitions and symbols
4 Profile of unified screw threads
Section 2: Standard series
5 Diameter/pitch combinations
6 Tolerance classes of external and internal threads
7 Limits of size, and tolerances, for uncoated threads
8 Allowances for uncoated threads
9 Coated threads
10 Gauges
11 Designation of unified screw threads
Section 3: Special series (UNS)
12 Diameter/pitch combinations, fractional sizes
13 Diameter/pitch combinations, decimal sizes
14 Tolerance classes of external and internal UNS threads
15 Tolerances and allowances
16 Coated UNS threads
17 Designation of UNS threads
Annexes
Annex A (informative) - Bases of tolerances and allowances
for unified screw threads [1/4] in and larger
Annex B (informative) - Outline guide, and examples, for
calculating limits of size of untabulated UNS screw
threads
Annex C (informative) - Forms of the crest of external threads
Annex D (informative) - General symbols
Annex E (informative) - Tolerances on pitch and flank angle in
relation to tolerance on effective diameter
Annex F (informative) - Standard unified thread series,
guidance on selection and use
Annex G (informative) - Standard unified thread series,
information and guidance regarding the tolerance
classes
Bibliography
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