OS GSO ISO 10513:2026
ISO 10513:2025
Omani Standard
Current Edition
·
Approved on
17 September 2026
Fasteners — Prevailing torque hexagon nuts — High nuts (all metal), with fine pitch thread
OS GSO ISO 10513:2026 Files
English
6 Pages
Current Edition
Reference Language
OMR
20.41
OS GSO ISO 10513:2026 Scope
This document specifies the characteristics of prevailing torque (all metal) hexagon high nuts, 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 hmin = mmin (as specified in ISO 898-2 and ISO 8674 for style 2) plus the prevailing torque feature. hmax has been established in function of hmin; therefore, the tolerance (hmax – hmin) does not follow the ISO code system for tolerances (IT system). The wrenching height mw,min corresponds to the values specified for style 1.
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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