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BSI - BS 2558

Tubular Box Spanners

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Organization: BSI
Publication Date: 31 December 1954
Status: active
Page Count: 32
ICS Code (Hand-operated tools): 25.140.30
scope:

Steels for spanners and tommy bars; hardness figures, performance test. Two grades of spanner. Dimensions: unified precision hexagons, normal series, in BS 1768; Unified black hexagons, heavy series, in BS 1769; Unified machine screw hexagons in BS 1981; precision hexagons B.S.W. and B.S.F. in BS 1083; black hexagons in BS 916; B.A. hexagons in BS 57; Whitworth large hexagons (originally in BS 190, now obsolete); metric hexagons.

Document History

BS 2558
December 31, 1954
Tubular Box Spanners
Steels for spanners and tommy bars; hardness figures, performance test. Two grades of spanner. Dimensions: unified precision hexagons, normal series, in BS 1768; Unified black hexagons, heavy series,...

References

This document references:
BS 1083 - SPECIFICATION FOR PRECISION HEXAGON BOLTS, SCREWS & NUTS (B.S.W. & B.S.F. THREADS)
Published by BSI on August 20, 1965
Dimensions for bolts, screws, ordinary nuts, lock nuts, slotted nuts, castle nuts for ferrous and non-ferrous fasteners in nominal sizes ¼ in to 2 in. Mechanical properties for steel fasteners in...
This document references:
BS 57 - Specification for B.A. Screws bolts and nuts
Published by BSI on March 31, 1951
Heads: cheese, round, countersunk, raised-countersunk, hexagonal; hexagonal nuts, ordinary and locknut; range No. 0 to No. 16 B.A. Standard lengths of screws.
This document is referenced by:
DEF STAN 51-11: PART 28 - Hand Tools, General Purpose Part 28 (A): Miscellaneous Items (B): Hand Tools for Use in Hazardous or Critical Conditions
Published by MODUK on January 1, 1993
This Part of the Standard specifies a range of Miscellaneous, General Purpose Hand Tools and Hand Tools for use in Hazardous or Critical Conditions which have been approved for use within the...
This document is referenced by:
DEF STAN 51-11: PART 3 - Hand Tools, General Purpose Part 3: Spanners, Box (Tubular) and Tommy Bars
Published by MODUK on January 1, 1988
This Part of the Defence Standard specifies a range of spanners, box (tubular), with tommy bars, based on ISO, metric and imperial hexagon sizes, which have been approved for use within MOD.
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