BS 57:1951

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Books

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BSI

Specification. B.A. screws bolts and nuts|Nuts, Slotted-head fasteners, British Association screw threads, Screws (bolts), Hexagonal-head fasteners, Locknuts, Threaded fasteners, Countersunk fasteners, Round-head fasteners, Bolts, Length, Cheese-head fasteners, Dimensions, Tensile stress

134 GBP