BSI BS 1842: Specification for Double-Ended Open-Jawed Spanners for B.A. Hexagon Sizes
SDO: BSI: British Standards Institution
DOD Adopted ANSI Approved Approved
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.
- Hand tools
- British Association screw threads
- Hexagonal-head fasteners
- Open-ended spanners
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