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BSI
BS 2558:1954

BS 2558:1954

Current

Current

The latest, up-to-date edition.

Specification for tubular box spanners

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-12-1954

Publisher

British Standards Institution

Cooperating organizations
Foreword
Specification
1. Scope
2. Material for spanners
3. Material for tommy bars
4. Heat treatment and hardness for Grade A spanners
5. Tommy bar holes
6. Designation and marking
7. Finish
8. Performance test
     a. Grade A and Grade B spanners
     b. Tommy bars
9. General dimensions
10. Tolerances
     a. Tube wall
     b. Formed ends of spanners
11. Tommy bars
Tables
1. Maximum dimensions across flats of hexagons
2. Dimensions for tubular box spanners for Unified
     hexagon sizes (BS 1768 and BS 2708, Normal Series
     and BS 1769, Heavy series)
2A. Dimensions of tubular box spanners for Unified
     hexagon sizes (Normal Series) to BS 1768 and BS 2708
3. Dimensions of tubular box spanners for Unified
     machine screw and machine screw nut hexagons
     (BS 1981)
4. Dimensions of tubular box spanners for BS hexagons
     (BS 916 and BS 1083) and Whitworth large hexagons
5. Dimensions of tubular box spanners for BS hexagons
     (BS 57)
6. Dimensions of tubular box spanners for metric
     hexagons

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.

This British Standard relates to tubular box spanners suitable for the following hexagon standards or ranges:

BS 1768, Unified precision hexagon bolts, screws, nuts (UNC and UNF threads) and plain washers. Normal series.

BS 1769, Unified black hexagon bolts, screws, nuts (UNC and UNF) and plain washers. Heavy series.

BS 1981, Unified machine screws and machine screw nuts.

BS 1083, Precision hexagon bolts, screws, nuts (BSW and BSF threads) and plain washers.

BS 916, Black bolts and nuts. Hexagon and square, BSW and BSF.

BS 57, B.A. screws, bolts, nuts and plain washers.

Whitworth large hexagons (originally specified in BS 190, now obsolete).

Metric hexagons.

NOTE The spanners specified are also suitable for all the bolt sizes given in BS A1021) and for all the bolt head and most of the nut sizes used by the petroleum industry and specified in BS 17502).

The specification includes clauses for material, heat treatment, marking, tests and dimensional details together with requirements for the tommy bars by which the spanners are operated.

Committee
MTE/15
DevelopmentNote
Reviewed and confirmed by BSI, January 2011. (12/2010)
DocumentType
Standard
Pages
32
PublisherName
British Standards Institution
Status
Current

Standards Relationship
ISO 2236:1991 Similar to

DEFSTAN 51-11(PT28)/2(1993) : 1993 HAND TOOLS, GENERAL PURPOSE - PART 28: (A): MISCELLANEOUS ITEMS (B): HAND TOOLS FOR USE IN HAZARDOUS OR CRITICAL CONDITIONS
BS 2558:Supplement No. 1:1968 Metric sizes

BS 1750(1961) : LATEST BOLTING FOR THE PETROLEUM INDUSTRY
BS 2558:Supplement No. 1:1968 Metric sizes
BS 916:1953 Specification for black bolts, screws and nuts, hexagon and square, with B.S.W. threads, and partly machined bolts, screws and nuts, hexagon and square, with B.S.W. or B.S.F. threads
BS 57:1951 Specification. B.A. screws bolts and nuts
BS 1769:1951 Specification. Unified black hexagon bolts, screws, nuts (UNC & UNF threads). Heavy series
BS 2708(1956) : LATEST UNIFIED BLACK SQUARE AND HEXAGON BOLTS, SCREWS AND NUTS (UNC AND UNF THREADS) - NORMAL SERIES
BS 1768:1951 Bolts screws nuts (unc & unf threads) normal series
BS 970:1955 Wrought steels (bars billets and forgings
BS 192:1954 Open-ended spanners (not including B.A. sizes)

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Hardcopy - English
PDF - English
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