BS 1127-3 90th Edition, June 29, 1990
Screwing Dies and Dienuts - Part 3: Specification for Hand- and Machine-Operated Circular Screwing Dies for Parallel Pipe Threads; G Series
Includes all amendments and changes through Reaffirmation Notice , March 1, 2004
Additional Comments: SAME AS ISO 4231
Published By:British Standards Institution (BSI)
Dimensions of dies intended for the production of threads in accordance with ISO 228-1.