NF ISO 2903

NF ISO 2903

September 1997
Standard Cancelled

ISO metric trapezoidal screw threads. Tolerances.

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Main informations

Collections

National standards and national normative documents

Publication date

September 1997

Number of pages

15 p.

Reference

NF ISO 2903

ICS Codes

21.040.10   Metric screw threads

Classification index

E03-617

Print number

2 - 01/10/1997

International kinship

ISO 2903:1993
Standard replaced by (1)
NF ISO 2903
November 2016
Standard Current
ISO metric trapezoidal screw threads - Tolerances

ISO 2903:2016 specifies a tolerance system for metric trapezoidal screw threads in accordance with ISO 2902. The tolerances refer to the design profile in accordance with ISO 2901. The tolerance system does not apply to trapezoidal screw threads with special requirements on axial displacement, for example, machine tool lead and feed screws and nuts.

Table of contents
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Définitions
    1
  • 4 Symboles
    1
  • 5
    Structure du système de tolérances 1
  • 6
    Qualités de tolérances 2
  • 7
    Positions de tolérances 2
  • 8
    Longueurs en prise 3
  • 9
    Tolérances sur les diamètres au sommet et à fond de filet 4
  • 10
    Tolérances sur le diamètre sur flancs 4
  • 11
    Tolérances recommandées 8
  • 12
    Filetages à plusieurs filets 9
  • 13 Formules
    9
  • 14 Désignation
    10
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