BSI - BS 949-2
Screwing Taps Part 2: Taps for Unified Threads (and for the Obsolescent Whitworth and BA Forms)
|Publication Date:||30 April 1979|
|ICS Code (Taps and threading dies):||25.100.50|
|ICS Code (Manufacturing engineering (Vocabularies)):||01.040.25|
General dimensions of short machine or hand taps and of long shank machine taps for Unified, BSW, BSF and BA threads, and dimensions and tolerances on the threaded portion of those taps.