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ISO 10512:2025

Fasteners — Prevailing torque hexagon nuts — Regular nuts (with non-metallic insert), with fine pitch thread

Publication date:   Jun 13, 2025

General information

60.60   Standard published   Jun 13, 2025

ISO

ISO/TC 2/SC 12 Fasteners with metric internal thread

International Standard

21.060.20   Nuts

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Scope

This document specifies the characteristics of prevailing torque hexagon regular nuts (with non‑metallic insert), in steel and stainless steel, with metric fine pitch thread 8 mm to 39 mm, and with product grades A and B.
NOTE            These nuts are designed with an overall height equal to mmin (as specified in ISO 898-2 and ISO 8673 for style 1) plus the prevailing torque feature. The height of the prevailing torque feature (hmax – mmin) for the non-metallic insert is identical for regular, high and thin nuts for a given diameter.
If in certain cases other specifications are requested, property classes and stainless steel grades can be selected from ISO 898-2 or ISO 3506-2.

Life cycle

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ISO 10512:2012

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PUBLISHED
ISO 10512:2025
60.60 Standard published
Jun 13, 2025