90.93 Standard confirmed Oct 31, 2022
ISO
ISO/TC 29/SC 9 Tools with defined cutting edges, holding tools, cutting items, adaptive items and interfaces
International Standard
25.100.50 Taps and threading dies
ISO 4231:2016 is a supplement to ISO 2568 and ISO 4230 and specifies the dimensions of hand- and machine-operated circular screwing dies intended for production of parallel pipe threads, G series, in accordance with ISO 228‑1.
The general dimensions of these dies (diameter, thickness and fixing dimensions) are in accordance with ISO 2568 so as to permit the driving of hand-operated dies with the aid of the die stocks defined in that document.
WITHDRAWN
ISO 4231:1987
PUBLISHED
ISO 4231:2016
90.93
Standard confirmed
Oct 31, 2022