Dimensions, general requirements for sizes ½ in to 2 in. Dimensions of bolts, screws, ordinary nuts, lock nuts, slotted nuts, bolts faced under the head and machined on shank, machined nuts. Formulae for calculation of dimensions for bolts, screw heads, nuts in intermediate sizes, and sizes larger than 2 in.
Specifies requirements for materials, finish and dimensions for the following types of metal washers; small and large bright washers for use with B.A. and American Number size fasteners; small and large bright washers in heavy and light gauge for use with UNC, UNF, B.S.W. and B.S.F. fasteners; medium and large bright washers for automobile purposes for use with UNC, UNF, B.S.W. and B.S.F. fasteners; ordinary and large black washers; small light gauge black washers; round black washers with square holes for woodwork and timber constructions; square black washers with round holes; square or D-shaped taper washers.
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