BS 2558:1954 - Specification for tubular box spanners
Essential maintenance work will be carried out on BSI Shop over the weekend of 12 and 13 June 2021. BSI Shop will be operational during this time but you might experience slowness for a very brief period of time. Please accept our apologies for any inconvenience this may cause.

BS 2558:1954

Specification for tubular box spanners

Status : Confirmed, Current   Published : December 1954



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.

Standard NumberBS 2558:1954
TitleSpecification for tubular box spanners
StatusConfirmed, Current
Publication Date31 December 1954
Confirm Date24 May 2021
Normative References(Required to achieve compliance to this standard)No other standards are normatively referenced
Informative References(Provided for Information)No other standards are informatively referenced
Amended ByPD 3590
PD 2696
PD 2150
DescriptorsDesignations, Hexagonal-head fasteners, Torsion testing, Steels, Dimensions, Wrenches, Imperial system, Box spanners, Threads, Performance testing, Marking, Size, Spanners, Thread forms
Title in FrenchCles a douille tubulaires. Specification
Title in GermanHuelsenschluessel. Spezifikation
ISBN0 580 34580 7
File Size416 KB

 Your basket
Your basket is empty

Multi-user access to over 3,500 medical device standards, regulations, expert commentaries and other documents


Access, view and download standards with multiple user access, across multiple sites with BSOL

Tracked Changes

Understand the changes made to a standard with our new Tracked Changes version

Develop a PAS

Develop a fast-track standardization document in 9-12 months