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BS 3555:1962
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Specification for ring spanners
Hardcopy
30-11-1988
English
31-10-1962
Specifies the form, dimensions, materials, heat treatment, hardness, marking and testing of bihexagonal ring spanners of the double-ended cranked, single-ended cranked, double-ended flat and single-ended flat types. The spanners are suitable for hexagon sizes in the Unified and Whitworth series of screwed fasteners.
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