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  • BSI
    BS 1842:1952 Specification for double-ended open-jawed spanners for B.A. hexagon sizes
    Edition: 1952
    $267.71
    / user per year

Description of BS 1842:1952 1952

This British Standard relates to spanners having open-ended jaws suitable for hexagons in the B.A. (British Association) range as given in BS 57, “B.A. bolts, screws, nuts and washers.”

Details of material and hardness are included together with dimensions and tolerances on the jaw openings.

There shall be two categories, designated spear-head and round-head, which are illustrated at the head of Table 1 and Table 2 respectively.

Each spanner shall be double-ended and the range of jaw openings shall be that given in Clause 4.



Dimensions, manufacture, material of spear-head and round-head spanners. Sizes and relationship of sizes on each spanner. Spear-head spanners with alternative angles of head: one with both heads inclined at 15°, the other with one head in line with the axis and opposite head inclined at 45°. For B.A. hexagon bolts and nuts to BS 57 or hexagon bars and rods of similar sizes.

Standard NumberBS 1842:1952
TitleSpecification for double-ended open-jawed spanners for B.A. hexagon sizes
StatusConfirmed
Publication Date1952-03-10
DescriptorsMarking, Open-ended spanners, British Association screw threads, Design, Hand tools, Dimensions, Steels, Hexagonal-head fasteners, Spanners, Wrenches
ICS25.140.30 Hand-operated tools
CommitteeMTE/15
ISBN0 580 34099 6
PublisherBSI
Pages12

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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