Aerospace series. Six lobe recess. Geometrical definition

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

11-30-2010

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Required characteristics
4 Designation
5 Technical specification

Defines the dimensions and tolerances of a six lobe recess.

Committee	ACE/12
DevelopmentNote	Supersedes 08/30192094 DC. (11/2010)
DocumentType	Standard
Pages	10
PublisherName	British Standards Institution
Status	Current
Supersedes	08/30192094 DC : 0

Standards	Relationship
EN 3911:2010	Identical

15/30281806 DC : 0	BS A 401 TO A 420 - AEROSPACE SERIES - SPECIFICATION FOR SCREWS, PAN AND 100 DEGREES COUNTERSUNK HEAD, HEXALOBULAR DRIVE RECESS (UNIFIED THREADS BELOW 1/4 INCH), VARIOUS MATERIALS
BS A 401-420:2015	Specification for screws, pan and 100° countersunk head, hexalobular drive recess (unified threads below ¼ inch) in various materials

NAS1800:2004	RECESS, SIX LOBE DRIVE, INTERNAL, DIMENSIONS FOR RECESS AND GAGES
EN 3905:2008	Aerospace series - Six lobe recesses for bolts - Technical specification

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BS EN 3911:2010