BS-93 › Complete Document History
British Association (B.A.) screw threads. Requirements
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2008 EDITION - REAFFIRMED IN 8/2/2013 - Sept. 30, 2008
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Obsolete Revision Information: |
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PD 1229 - AMENDMENT 1 FOR 1951 EDITION - July 1, 1951
1951 EDITION - B.A.SCREW THREADS (OBSOLESCENT - May 25, 1951 |