prBAS EN ISO 7719:2026
Fasteners - Prevailing torque hexagon nuts - Regular nuts (all metal)
General information
Status:Project
Number of pages:9
Adoption method:Proglašavanje
Language:engleski
Edition:3.
Realization date:15.10.2025
Forseen date for next stage code:24.10.2025
Technical committee:BAS/TC 16, Mechanical elements
ICS:
21.060.20, Nuts
Abstract
This document specifies the characteristics of prevailing torque (all metal) hexagon regular nuts, 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 hmin = mmin (as specified in ISO 898-2 and ISO 4032 for style 1) 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).
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.
Lifecycle
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Original document and degree of correspondence
EN ISO 7719:2025, identical
ISO 7719:2025, identical
Relation to BAS standards
Work material
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