BS ISO 1501:2009+A1:2020
$142.49
ISO miniature screw threads
| Published By | Publication Date | Number of Pages |
| BSI | 2020 | 24 |
This International Standard specifies the profiles, diameter-pitch combinations, basic dimensions, tolerances, limits of size and designation for ISO miniature screw threads with nominal diameters from 0,3 mm to 1,4 mm. These threads are applicable to timepieces, optical instruments, electrical meters, measuring instruments, etc.
The profiles and tolerance system for ISO miniature screw threads (S) differ from the profile and tolerance system for ISO general purpose metric screw threads (M).
For threads with nominal diameters from 1 mm to 1,4 mm, designers shall decide to use ISO general purpose metric screw threads (M) or ISO miniature screw threads (S). ISO miniature screw threads are shown in Annex A.
Annex C illustrates the differences in miniature screw threads between the ISO International Standards and those of certain countries.
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 Profiles 5.1 Basic profile 5.2 Design profile |
| 9 | 6 Diameter-pitch combinations and basic dimensions |
| 10 | 7 Tolerances 7.1 Tolerance position 7.2 Tolerance grades 7.3 Grade-position combinations and tolerance zones |
| 13 | 8 Designation |
| 14 | 9 Limits of size |
| 16 | 10 Inspection |
| 17 | Annex A (normative) ISO miniature screw threads with nominal diameters from 1 mm to 1,4 mm |
| 20 | Annex B (informative) Inspection |
| 21 | Annex C (informative) Differences between the ISO International Standards and those of some countries concerning miniature screw threads |
