BS ISO 13921:2008
Current
The latest, up-to-date edition.
Aerospace. Screws, 100 degrees reduced countersunk head, internal offset cruciform ribbed or unribbed drive, normal shank, short or medium length MJ threads, metallic material, coated or uncoated, strength classes less than or equal to 1100 MPa. Dimensions
Hardcopy , PDF
English
30-09-2008
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Foreword
1 Scope
2 Normative references
3 Configuration and dimensions
Describes the dimensions of 100 degrees reduced countersunk head screws with internal offset cruciform ribbed or unribbed drive, with close or large tolerance normal shank and short or medium length MJ threads, in metallic material, coated or uncoated, with strength classes less than or equal to 1100 MPa.
| Committee |
ACE/12
|
| DevelopmentNote |
Supersedes BS A311(1997) & 05/30128686 DC. (10/2008)
|
| DocumentType |
Standard
|
| Pages |
14
|
| PublisherName |
British Standards Institution
|
| Status |
Current
|
| Supersedes |
This International Standard specifies the dimensions of 100° reduced countersunk head screws with internal offset cruciform ribbed or unribbed drive, with close or large tolerance normal shank and short or medium length MJ threads, in metallic material, coated or uncoated, with strength classes less than or equal to 1100MPa.
This International Standard is applicable to the compilation of aerospace product standards.
| Standards | Relationship |
| ISO 13921:2008 | Identical |
| ISO 5855-2:1999 | Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts |
| ISO 14276:2002 | Aerospace — Drives, internal, offset cruciform — Metric series |
| 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 |
| ISO 3353-1:2002 | Aerospace Lead and runout threads Part 1: Rolled external threads |
| ISO 7913:1994 | Aerospace Bolts and screws, metric Tolerances of form and position |
| ISO 14275:2002 | Aerospace — Drives, internal, offset cruciform, ribbed — Metric series |
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