NF EN ISO 7040

March 2013

Standard Cancelled

Prevailing torque type hexagon regular nuts (with non-metallic insert) - Property classes 5, 8 and 10

ISO 7040:2012 specifies the characteristics of prevailing torque type hexagon regular nuts (with non-metallic insert) with threads from M3 up to and including M36, in product grade A for threads up to and including M16 and product grade B for threads above M16, and with property classes 5, 8 and 10.

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Main informations

Collections

National standards and national normative documents

Publication date

March 2013

Number of pages

12 p.

Reference

NF EN ISO 7040

ICS Codes

21.060.20 Nuts

Classification index

E25-409

Print number

1 - 25/02/2013

International kinship

ISO 7040:2012

European kinship

EN ISO 7040:2012

Sumary

Prevailing torque type hexagon regular nuts (with non-metallic insert) - Property classes 5, 8 and 10

Replaced standards (1)

NF EN ISO 7040

December 1997

Standard Cancelled

Prevailing torque type hexagon nuts (with non-metallic insert), style 1. Property classes 5, 8 and 10.

Standard replaced by (1)

NF EN ISO 7040

June 2025

Standard Current

Fasteners - Prevailing torque hexagon nuts - Regular nuts (with non-metallic insert)

This document specifies the characteristics of prevailing torque hexagon regular nuts (with non?metallic insert), in steel and stainless steel, with metric coarse pitch thread M3 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 4032 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. Nuts with sizes D < M5 and design principles in accordance with style 1 are specified in Annex A. 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.

Table of contents

Avant-propos
iv
1 Domaine d'application
1
2 Références normatives
1
3 Dimensions
1
4 Exigences et Normes internationales de référence
3
5 Désignation
3
Bibliographie
4

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