BS ISO 2903:2016:2020 Edition
$142.49
ISO metric trapezoidal screw threads. Tolerances
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 24 |
This document specifies a tolerance system for metric trapezoidal screw threads in accordance with ISO 2902 . The tolerances refer to the design profile in accordance with ISO 2901 .
The tolerance system does not apply to trapezoidal screw threads with special requirements on axial displacement, for example, machine tool lead and feed screws and nuts.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 6 | Foreword |
| 7 | 1 Scope 2 Normative references 3 Terms and definitions 4 Symbols |
| 8 | 5 Tolerance system 6 Tolerance positions |
| 10 | 7 Tolerance grades |
| 15 | 8 Length groups of thread engagement |
| 17 | 9 Recommended tolerance classes 10 Multiple-start threads |
| 18 | 11 Formulae 11.1 General 11.2 Fundamental deviations 11.3 Crest diameter tolerances 11.3.1 Tolerances for major diameter of external thread (Td) |
| 19 | 11.3.2 Tolerances for minor diameter of internal thread (TD1) 11.4 Pitch diameter tolerances 11.4.1 Tolerances for pitch diameter of external thread (Td2) 11.4.2 Tolerances for pitch diameter of internal thread (TD2) 11.5 Tolerances for minor diameter of external thread (Td3) |
| 20 | 11.6 Length groups of thread engagement 12 Designation 12.1 General 12.2 Designation of single-start threads |
| 21 | 12.3 Designation of multiple-start screw threads 12.4 Designation of left-hand threads |
| 22 | Bibliography |
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BS ISO 2903:2016
ISO metric trapezoidal screw threads. Tolerances Published By Publication Date Number of Pages BSI 2016…
