BS ISO 12257:2008
Current
The latest, up-to-date edition.
Aerospace. Internal six-lobe drives. Metric series
Hardcopy , PDF
English
31-08-2008
Foreword
1 Scope
2 Normative references
3 Configuration and dimensions
4 Designation
Describes the dimensions of metric internal six-lobe drives used in metric screws in nominal thread diameter range 3 mm to 20 mm.
| Committee |
ACE/12
|
| DevelopmentNote |
Supersedes 05/30128806 DC. (08/2008)
|
| DocumentType |
Standard
|
| Pages |
10
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard specifies the dimensions of metric internal six-lobe drives used in metric screws in nominal thread diameter range 3mm to 20mm.
NOTE Pending publication of an International Standard relating to limit gauges, special care is required to ensure that the dimensions and tolerances specified in this International Standard are confirmed by alternative means.
| Standards | Relationship |
| ISO 12257:2008 | Identical |
| ISO 1101:2017 | Geometrical product specifications (GPS) — Geometrical tolerancing — Tolerances of form, orientation, location and run-out |
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