BS 949-2:1979
$142.49
Screwing taps – Taps for Unified threads (and for the obsolescent threads of Whitworth and BA forms)
Published By | Publication Date | Number of Pages |
BSI | 1979 | 49 |
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.