BS A 311:1997

Superseded

Aerospace. Screws, 100° 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

Available format(s)

Hardcopy , PDF

Superseded date

30-09-2008

Language(s)

English

Published date

15-03-1997

Publisher

British Standards Institution

Committees responsible
National foreword
Specification
1 Scope
2 Normative references
3 Configuration and dimensions

Defines dimensions of 100% reduced countersunk head screw having internal offset cruciform ribbed or unribbed drive, close or large tolerance normal shank, short or medium length MJ threads, in coated or uncoated metallic material with strength classes not exceeding 1100 MPa. Applies to compilation of aerospace products standards.

Committee	ACE/12
DevelopmentNote	Reviewed and confirmed by BSI, January 2005. (12/2004) Supersedes 94/712750 DC (11/2005)
DocumentType	Standard
Pages	8
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS ISO 13921:2008
Supersedes	94/712750 DC : NOV 94

BS 6293-2:1994	Aerospace. MJ threads Limit dimensions for bolts and nuts
ISO 14276:2002	Aerospace Drives, internal, offset cruciform Metric series
BS 2A 231:1993	Rolled threads for bolts. Lead and runout requirements
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
BS 2A 296:1995	Bolts and screws, metric. Tolerances of form and position
ISO 14275:2002	Aerospace Drives, internal, offset cruciform, ribbed Metric series