BS ISO 529:2017
Current
The latest, up-to-date edition.
Short machine taps and hand taps
Hardcopy , PDF
English
31-03-2017
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Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 ISO metric threads
5 ISO inch threads, 'Unified coarse' (UNC) and
'Unified fine' (UNF) series
6 Non-recommended inch threads
Annex A (normative) - Shank diameter, overall
length and thread length as a function of
range of diameters and pitches
Annex B (informative) - Shank diameters and size
of driving squares (Extract from ISO 237)
Annex C (informative) - Relationship between
designations in this document and
ISO 13399 series
Bibliography
Describes the general dimensions of short machine taps and hand taps.
| Committee |
W/-
|
| DevelopmentNote |
Supersedes BS 949-1(1992). (03/2017)
|
| DocumentType |
Standard
|
| Pages |
36
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This document specifies the general dimensions of short machine taps and hand taps. These dimensions, established as functions of the thread diameter and pitch, are the following: length of thread (maximum); overall length; shank diameter and dimensions of driving square; dimensions of the connecting portion between the shank and threaded part. This document is applicable to taps intended for cutting the following threads: ISO metric threads: coarse pitch; fine pitch; ISO inch threads: “Unified Coarse?? series (UNC) and “Unified Fine?? series (UNF); Inch threads, non-recommended: “British Standard Whitworth?? (BSW) and “British Standard Fine?? (BSF); “British Association?? (BA). NOTE1 The overall length, thread length and diameters of shank for taps whose thread diameter and pitch are not listed in tables are given in TableA.1a. NOTE2 AnnexB gives an abstract from ISO237 for shank diameters and size of driving squares, for information. NOTE3 Technical specifications for taps covered by this document (including marking) are given in ISO8830 .
| Standards | Relationship |
| ISO 529:2017 | Identical |
| ISO 2857:1973 | Ground thread taps for ISO metric threads of tolerances 4H to 8H and 4G to 6G coarse and fine pitches — Manufacturing tolerances on the threaded portion |
| ISO 8830:1991 | High-speed steel machine taps with ground threads — Technical specifications |
| ISO 237:1975 | Rotating tools with parallel shanks — Diameters of shanks and sizes of driving squares |
| ISO 286-2:2010 | Geometrical product specifications (GPS) ISO code system for tolerances on linear sizes Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts |
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