This secind edition cancels and replaces the first edition (ISO 4231:1977). Is a supplement to ISO 2568 and ISO 4230 and lys down the diemensions of these screwing dies intended for production of parallel pipe threads in accordance with ISO 228-1. Diameter, thickness and fixing dimensions are accordance with ISO 2568 so as to permit the driving of and-oprated dies with the aid of the die stocks defined in that document.

General information

  • Status :  Withdrawn
    Publication date : 1987-11
  • Edition : 2
    Number of pages : 2
  • :
    ISO/TC 29/SC 9
    Tools with defined cutting edges, holding tools, cutting items, adaptive items and interfaces
  • 25.100.50
    Taps and threading dies

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.