# ISO 2320:2008 — Withdrawn and superseded ISO standards For ISO 2320:2008, item title is Prevailing torque type steel nuts — Mechanical and performance properties; status code is 9599; successor is ISO 2320:2015; withdrawn / published date is 2008-10-23, recorded from its source on 2026-08-05. - **Identifier:** ISO 2320:2008 _(verified: appears in the quote below)_ - **Item title:** Prevailing torque type steel nuts — Mechanical and performance properties _(verified: appears in the quote below)_ - **Status code:** 9599 _(verified: appears in the quote below)_ - **Successor:** ISO 2320:2015 - **Withdrawn / published date:** 2008-10-23 _(verified: appears in the quote below)_ ## What the source says > 42184,IS,,ISO 2320:2008,Prevailing torque type steel nuts — Mechanical and performance properties,Écrous autofreinés en acier — Caractéristiques mécaniques et performances,2008-10-23,4,['21.060.20'],ISO/TC 2/SC 12,9599,"[7150,44739]",[61175],"['en','fr']",19,"

ISO 2320:2008 specifies the mechanical and performance properties for prevailing torque type steel nuts when tested at an ambient temperature range of +10 °C to +35 °C. It includes a single test to determine the prevailing torque properties (performance properties) and/or the torque/clamp force properties.

ISO 2320:2008 applies to prevailing torque all metal type nuts and prevailing torque non-metallic insert type nuts: a) with ## 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 Part of [Withdrawn and superseded ISO standards](https://referencesource.org/iso-standard-supersessions/).