NF ISO 965-1
NF ISO 965-1

NF ISO 965-1

April 2026
Standard Current

ISO general purpose metric screw threads - Tolerances - Part 1: Principles and basic data

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Main informations

Collections

National standards and national normative documents

Publication date

April 2026

Number of pages

29 p.

Reference

NF ISO 965-1

ICS Codes

17.040.10   Limits and fits
21.040.10   Metric screw threads

International kinship

ISO 965-1:2026
Replaced standards (2)
NF ISO 965-1/A1
NF ISO 965-1/A1
December 2021
Standard Cancelled
ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data — Amendment 1

Le présent document amende la norme NF ISO 965-1 qui fait partie d''une série de 5 normes donnant les tolérances des filetages métriques ISO pour usages généraux. Le présent amendement corrige le domaine d''application en remplaçant "profil de base" par "profil nominal". Il modifie également les références normatives, l''Article 6 sur les qualités de tolérance et l''Article 11 sur l''arrondi à fond de filet.

NF ISO 965-1
NF ISO 965-1
November 2013
Standard Cancelled
ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data

Dans la série des normes relatives aux filetages métriques ISO à filet triangulaire d''usages généraux, la présente partie de la NF ISO 965 spécifie un système de tolérances constitué de 7 qualités (3 à 9) , de 2 positions de tolérances pour les filetages intérieurs (G et H) et de 8 positions pour les filetages extérieurs (a à h). Elle fixe des recommandations pour les classes de tolérances en fonction de la classe de qualité du filetage et de la longueur en prise. Elle donne les formules permettant le calcul des valeurs des tolérances sur le diamètre sur flancs et sur le diamètre au sommet, ainsi que le calcul des écarts fondamentaux et des limites de la longueur en prise. Elle spécifie enfin les règles de désignation des filetages.

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