OS GSO ISO 7041:2026
ISO 7041:2025
Omani Standard
Current Edition
·
Approved on
17 September 2026
Fasteners — Prevailing torque hexagon nuts — High nuts (with non-metallic insert)
OS GSO ISO 7041:2026 Files
English
6 Pages
Current Edition
Reference Language
OMR
20.35
OS GSO ISO 7041:2026 Scope
This document specifies the characteristics of prevailing torque hexagon high nuts (with non‑metallic insert), in steel and stainless steel, with metric coarse pitch thread M5 to M39, 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 4033 for style 2) 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.
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