# ISO 4231:1977 — Withdrawn and superseded ISO standards

For ISO 4231:1977, item title is Hand- and machine-operated circular screwing dies for parallel pipe threads — G series; status code is 9599; successor is ISO 4231:1987; withdrawn / published date is 1977-02-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 4231:1977 _(verified: appears in the quote below)_
- **Item title:** Hand- and machine-operated circular screwing dies for parallel pipe threads — G series _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 4231:1987
- **Withdrawn / published date:** 1977-02-01 _(verified: appears in the quote below)_

## What the source says

> 10033,IS,,ISO 4231:1977,Hand- and machine-operated circular screwing dies for parallel pipe threads — G series,"Filières rondes de filetage, à main et à machine, pour filetages gaz cylindriques — Série G",1977-02-01,1,['25.100.50'],ISO/TC 29,9599,,[10034],"['en','fr']",2,

## Source

- https://isopublicstorageprod.blob.core.windows.net/opendata/_latest/iso_deliverables_metadata/csv/iso_deliverables_metadata.csv

Last verified: 2026-08-05. Review by: 2027-02-01.
Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).