BS ISO 529:2017
$167.15
Short machine taps and hand taps
| Published By | Publication Date | Number of Pages |
| BSI | 2017 | 36 |
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:
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length of thread (maximum);
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overall length;
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shank diameter and dimensions of driving square;
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dimensions of the connecting portion between the shank and threaded part.
This document is applicable to taps intended for cutting the following threads:
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ISO metric threads:
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coarse pitch;
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fine pitch;
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ISO inch threads:
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“Unified Coarse” series (UNC) and “Unified Fine” series (UNF);
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Inch threads, non-recommended:
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“British Standard Whitworth” (BSW) and “British Standard Fine” (BSF);
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“British Association” (BA).
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The overall length, thread length and diameters of shank for taps whose thread diameter and pitch are not listed in tables are given in Table A.1a.
Annex B gives an abstract from ISO 237 for shank diameters and size of driving squares, for information.
Technical specifications for taps covered by this document (including marking) are given in ISO 8830 .
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions |
| 8 | 4 ISO metric threads 4.1 Threads up to M25 4.1.1 Full-diameter shank taps with plain connecting portion |
| 9 | 4.1.2 Full-diameter shank taps with recess |
| 10 | 4.1.3 Relieved-shank taps |
| 11 | 4.2 Threads above M25 4.2.1 Relieved-shank taps for coarse pitch metric thread |
| 12 | 4.2.2 Relieved-shank taps for fine pitch metric thread |
| 14 | 5 ISO inch threads, “Unified coarse” (UNC) and “Unified fine” (UNF) series 5.1 “Unified” series threads up to 25,4 mm 5.1.1 Full-diameter shank taps with plain connecting portion |
| 15 | 5.1.2 Full-diameter shank taps with recess |
| 16 | 5.1.3 Relieved-shank taps |
| 17 | 5.2 “Unified” series threads above 25,4 mm 5.2.1 Relieved-shank taps for “Unified coarse” series threads |
| 18 | 5.2.2 Relieved-shank taps for “Unified fine” series threads |
| 19 | 6 Non-recommended inch threads 6.1 “British Standard Whitworth” (BSW) and “British Standard Fine” (BSF) threads 6.1.1 Full-diameter shank taps with recess |
| 20 | 6.1.2 Relieved-shank taps |
| 22 | 6.2 “British Association” (BA) threads 6.2.1 Full-diameter shank taps with plain connecting portion |
| 23 | 6.2.2 Full-diameter shank taps with recess |
| 24 | 6.2.3 Relieved-shank taps |
| 25 | Annex A (normative) Shank diameter, overall length and thread length as a function of range of diameters and pitches |
| 28 | Annex B (informative) Shank diameters and size of driving squares (Extract from ISO 237) |
| 29 | Annex C (informative) Relationship between designations in this document and ISO 13399 series |
| 32 | Bibliography |
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