ISO 965-1:2013/Amd 1:2021
(Amendment)ISO general purpose metric screw threads - Tolerances - Part 1: Principles and basic data - Amendment 1
ISO general purpose metric screw threads - Tolerances - Part 1: Principles and basic data - Amendment 1
Filetages métriques ISO pour usages généraux — Tolérances — Partie 1: Principes et données fondamentales — Amendement 1
General Information
- Status
- Published
- Publication Date
- 28-Sep-2021
- Technical Committee
- ISO/TC 1 - Screw threads
- Drafting Committee
- ISO/TC 1 - Screw threads
- Current Stage
- 6060 - International Standard published
- Start Date
- 29-Sep-2021
- Due Date
- 24-Dec-2021
- Completion Date
- 29-Sep-2021
Relations
- Effective Date
- 07-Jan-2025
- Effective Date
- 26-Nov-2021
- Effective Date
- 28-Oct-2023
Overview
ISO 965-1:2013/Amd 1:2021 is the latest amendment to the international standard governing general purpose metric screw threads - tolerances, Part 1: Principles and basic data. Developed by ISO Technical Committee ISO/TC 1 on Screw Threads, this amendment updates key principles and foundational data related to the tolerance specifications applied to metric screw threads used worldwide in manufacturing, engineering, and industrial applications.
This amendment reinforces the standards for accurate and reliable thread production by refining definitions, improving dimensional control factors, and establishing guidelines that support consistent thread quality. It ensures compatibility and interchangeability within global supply chains, contributing to enhanced product quality and safety.
Key Topics
Design Profile Clarification
The amendment replaces the term "basic profile" with "design profile," providing clearer terminology for thread profile specifications.Tolerance Controls for Accuracy
Emphasis is placed on controlling critical thread elements such as:- Pitch
- Flank angle
- Pitch cylinder parallelism
- Thread roundness
- Runout between pitch and crest diameters
These controls are vital for achieving precise thread dimensions and mechanical performance.
Dimensional Adjustments
Revised instructions recommend targeting a thread truncation of H/6, refining the positioning of the minor diameter of external threads to optimize fit and function.Corrections to Diagrams
Updates in figures ensure clarity by replacing ambiguous symbols to prevent misinterpretation during implementation.
Applications
The ISO 965-1:2013/Amd 1:2021 standard is essential for manufacturers, engineers, and quality control professionals who work with metric screw threads in sectors such as:
- Automotive and aerospace component manufacturing
- Mechanical engineering and machine building
- Precision instrumentation and tooling
- Construction and assembly of industrial equipment
- Supply chain management for standardized threaded fasteners
Implementing this amendment helps achieve higher thread accuracy, improves interchangeability of threaded parts in global markets, and facilitates compliance with international quality requirements.
Related Standards
- ISO 68-1: Defines the basic profile of metric screw threads; referenced for design conformity.
- ISO 965 series: Complete suite detailing tolerances and dimensional specifications across all parts for metric screw threads.
- ISO/IEC Directives, Part 1 & 2: Guidelines on development, drafting, and maintenance of international standards.
- World Trade Organization Technical Barriers to Trade (WTO TBT): Ensures standards like ISO 965-1 support global trade without unnecessary obstacles.
By adhering to ISO 965-1:2013/Amd 1:2021, organizations can ensure precise metric screw thread tolerances aligned with international best practices, guaranteeing enhanced quality control and interoperability across industries worldwide. For more detailed implementation guidance, refer to the full ISO documentation or consult your national standards body.
ISO 965-1:2013/Amd 1:2021 - ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data — Amendment 1 Released:9/29/2021
ISO 965-1:2013/Amd 1:2021 - Filetages métriques ISO pour usages généraux — Tolérances — Partie 1: Principes et données fondamentales — Amendement 1 Released:9/29/2021
Frequently Asked Questions
ISO 965-1:2013/Amd 1:2021 is a standard published by the International Organization for Standardization (ISO). Its full title is "ISO general purpose metric screw threads - Tolerances - Part 1: Principles and basic data - Amendment 1". This standard covers: ISO general purpose metric screw threads - Tolerances - Part 1: Principles and basic data - Amendment 1
ISO general purpose metric screw threads - Tolerances - Part 1: Principles and basic data - Amendment 1
ISO 965-1:2013/Amd 1:2021 is classified under the following ICS (International Classification for Standards) categories: 21.040.10 - Metric screw threads. The ICS classification helps identify the subject area and facilitates finding related standards.
ISO 965-1:2013/Amd 1:2021 has the following relationships with other standards: It is inter standard links to ISO 11929-1:2025, ISO 965-1:2013, ISO/FDIS 965-1. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
ISO 965-1:2013/Amd 1:2021 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
INTERNATIONAL ISO
STANDARD 965-1
Fourth edition
2013-09-15
AMENDMENT 1
2021-09
ISO general purpose metric screw
threads — Tolerances —
Part 1:
Principles and basic data
AMENDMENT 1
Filetages métriques ISO pour usages généraux — Tolérances —
Partie 1: Principes et données fondamentales
AMENDEMENT 1
Reference number
ISO 965-1:2013/Amd.1:2021(E)
©
ISO 2021
ISO 965-1:2013/Amd.1:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved
ISO 965-1:2013/Amd.1:2021(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
Attention is drawn to the possibility that some of the elements of
...
NORME ISO
INTERNATIONALE 965-1
Quatrième édition
2013-09-15
AMENDEMENT 1
2021-09
Filetages métriques ISO pour usages
généraux — Tolérances —
Partie 1:
Principes et données fondamentales
AMENDEMENT 1
ISO general purpose metric screw threads — Tolerances —
Part 1: Principles and basic data
AMENDMENT 1
Numéro de référence
ISO 965-1:2013/Amd.1:2021(F)
©
ISO 2021
ISO 965-1:2013/Amd.1:2021(F)
DOCUMENT PROTÉGÉ PAR COPYRIGHT
© ISO 2021
Tous droits réservés. Sauf prescription différente ou nécessité dans le contexte de sa mise en œuvre, aucune partie de cette
publication ne peut être reproduite ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique,
y compris la photocopie, ou la diffusion sur l’internet ou sur un intranet, sans autorisation écrite préalable. Une autorisation peut
être demandée à l’ISO à l’adresse ci-après ou au comité membre de l’ISO dans le pays du demandeur.
ISO copyright office
Case postale 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Genève
Tél.: +41 22 749 01 11
E-mail: copyright@iso.org
Web: www.iso.org
Publié en Suisse
ii © ISO 2021 – Tous droits réservés
ISO 965-1:2013/Amd.1:2021(F)
Avant-propos
L'ISO (Organisation internationale de normalisation) est une fédération mondiale d'organismes
nationaux de normalisation (comités membres de l'ISO). L'élaboration des Normes internationales est
en général confiée aux comités techniques de l'ISO. Chaque comité membre intéressé par une étude
a le droit de faire partie du comité technique créé à cet effet. Les organisations internationales,
gouvernementales et non gouvernementales, en liaison avec l'ISO participent également aux travaux.
L'ISO collabore étroitement avec la Commission électrotechnique internationale (IEC) en ce qui
concerne la normalisation électrotechnique.
Les procédures utilisées pour élaborer le présent document et celles destinées à sa mise à jour sont
décrites dans les Directives ISO/IEC, Partie 1. Il convient, en particulier de prendre note des différents
critères d'approbation requis pour les différents types de documents ISO. Le présent document a été
rédigé conformément aux règles de rédaction données dans les Directives ISO/IEC, Partie 2 (voir www
.iso .org/ directives).
L'attention est attirée sur le fait que certains des éléments du présent document peuvent faire l'objet de
droits de propriété intellectuelle ou de droits analogues. L'ISO ne saurait être tenue pour responsable
de ne pas avoir identifié de tels droits de propriété et averti de leur exis
...
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