BS 93:1951
Date published:
Specification for British Association (B.A.) screw threads with tolerances for sizes 0 B.A. to 16 B.A.
Form of thread defined. Tables: basic sizes from 0 B.A. to 25 B.A. Dimensions and tolerances for a 'normal' series from 0 B.A. to 16 B.A.; and for a 'close' class from 0 B.A. to 10 B.A. Recommended gauging system, tables of inch equivalents, in appendices. Data on bases of B.A. sizes, allowances and tolerances.
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BS 93:1951
Get this standard
Prices exclude GST
PDF
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