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About This Item

 

Full Description

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.

Cross References:
BS 919
BS 1044
BS 1580
BS 3643:Part 1
BS 3643:Part 2
Handbook No. 18
 

Document History

  1. BS 93:2008


    British Association (B.A.) screw threads. Requirements

    • Most Recent
  2. BS 08/30173466 DC


    BS 93. British Association (B.A.) screw threads. Requirements

    • Historical Version
  3. BS 93:1951

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    Specification for British Association (B.A.) screw threads with tolerances for sizes 0 B.A. to 16 B.A.

    • Historical Version