SPECIFICATION FOR BRITISH ASSOCIATION (B.A.) LOW TENSILE SCREWS AND NUTS FOR AERONAUTICAL PURPOSES

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-1951

Publisher

British Standards Institution

1 Scope
2 Material and manufacture
2A Freedom from defects
3 Dimensions
4 Length of screws
5 Ends of screws
6 Screw threads
7 Length of thread on screws
8 Chamfering
8A Countersinking
9 Finish
10 Identification

Specifies dimensions, material, finish and part numbers for British Association (B.A.) cheese, round, countersunk, and raised-countersunk head screws and dimensions, material, finish and code letters for British Association (B.A.) hexagon ordinary (or full) and thin (or lock) nuts for aeronautical use.

Committee	ACE/12
DevelopmentNote	1951 Edition Re-Issued in September 2012 and incorporates AMD 6 2012. Supersedes 12/30254182 DC. (09/2012)
DocumentType	Standard
Pages	16
PublisherName	British Standards Institution
Status	Current
Supersedes	12/30254182 DC : 0

BS 57:1951	Specification. B.A. screws bolts and nuts
BS 2A 27:1962	Specification for steel hexagonal nuts (B.A. and B.S.F threads) (ordinary, thin, slotted and castle) for aircraft