# ISO 7720:1983 — Withdrawn and superseded ISO standards

For ISO 7720:1983, item title is Prevailing torque type all-metal hexagon nuts, style 2 — Property class 9; status code is 9599; successor is ISO 7720:1997; withdrawn / published date is 1983-09-01, recorded from its source on 2026-08-05.

- **Identifier:** ISO 7720:1983 _(verified: appears in the quote below)_
- **Item title:** Prevailing torque type all-metal hexagon nuts, style 2 — Property class 9 _(verified: appears in the quote below)_
- **Status code:** 9599 _(verified: appears in the quote below)_
- **Successor:** ISO 7720:1997
- **Withdrawn / published date:** 1983-09-01 _(verified: appears in the quote below)_

## What the source says

> 14550,IS,,ISO 7720:1983,"Prevailing torque type all-metal hexagon nuts, style 2 — Property class 9","Écrous hexagonaux à freinage interne, à couple préalable (tout métal), style 2 — Classe de qualité 9",1983-09-01,1,['21.060.20'],ISO/TC 2,9599,,[14551],"['en','fr']",3,

## 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Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).