prEN ISO 10512

Fasteners - Prevailing torque hexagon nuts - Regular nuts (with non-metallic insert), with fine pitch thread (ISO/DIS 10512:2024)

ISO 10512:2012 specifies the characteristics of prevailing torque type hexagon regular nuts (with non-metallic insert) with metric fine pitch thread with nominal thread diameters, D, from 8 mm up to and including 36 mm, in product grade A for diamter sizes up to and including 16 mm and product grade B for diameter sizes above 16 mm, and with property classes 6, 8 and 10.

Verbindungselemente - Sechskantmuttern mit Klemmteil - Normalhohe Muttern (mit nichtmetallischem Einsatz), mit Feingewinde (ISO/DIS 10512:2024)

Fixations - Écrous hexagonaux autofreinés - Écrous normaux (à anneau non métallique), à pas fin (ISO/DIS 10512:2024)

L'ISO 10512:2012 spécifie les caractéristiques des écrous hexagonaux normaux autofreinés (à anneau non métallique) à filetage métrique à pas fin, de diamètre de filetage D de 8 mm à 36 mm inclus, de grade A pour les diamètres D jusqu'à 16 mm et de grade B pour les diamètres D supérieurs à 16 mm, et de classes de qualité 6, 8 et 10.

Vezni elementi - Šestrobe zaščitne matice - Navadni matice (s plastičnim vložkom) z drobnim navojem (ISO/DIS 10512:2024)

General Information

• Status: Not Published
• Publication Date: 29-Dec-2025
• ICS: 21.060.20 - Nuts
• Technical Committee: CEN/TC 185 - Threaded and nonthreaded mechanical fasteners and accessories
• Drafting Committee: CEN/TC 185 - Threaded and nonthreaded mechanical fasteners and accessories
• Current Stage: 4060 - Closure of enquiry - Enquiry
• Start Date: 29-Aug-2024
• Completion Date: 29-Aug-2024
• Ref Project: oSIST prEN ISO 10512:2024 - Fasteners - Prevailing torque hexagon nuts - Regular nuts (with non-metallic insert), with fine pitch thread (ISO/DIS 10512:2024)

Relations

• Revises: EN ISO 10512:2012 - Prevailing torque type hexagon regular nuts (with non-metallic insert) with metric fine pitch thread - Property classes 6, 8 and 10 (ISO 10512:2012)
• Effective Date: 19-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2024
Nadomešča:
SIST EN ISO 10512:2013
Vezni elementi - Šestrobe zaščitne matice - Navadni matice (s plastičnim vložkom)
z drobnim navojem (ISO/DIS 10512:2024)
Fasteners - Prevailing torque hexagon nuts - Regular nuts (with non-metallic insert), with
fine pitch thread (ISO/DIS 10512:2024)
Verbindungselemente - Sechskantmuttern mit Klemmteil - Normalhohe Muttern (mit
nichtmetallischem Einsatz), mit Feingewinde (ISO/DIS 10512:2024)
Fixations - Écrous hexagonaux autofreinés - Écrous normaux (à anneau non métallique),
à pas fin (ISO/DIS 10512:2024)
Ta slovenski standard je istoveten z: prEN ISO 10512
ICS:
21.040.10 Metrski navoji Metric screw threads
21.060.20 Matice Nuts
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
International
Standard
ISO/DIS 10512
ISO/TC 2/SC 12
Fasteners — Prevailing torque
Secretariat: DIN
hexagon nuts — Regular nuts (with
Voting begins on:
non-metallic insert), with fine pitch
2024-06-06
thread
Voting terminates on:
2024-08-29
Fixations — Écrous hexagonaux autofreinés — Écrous normaux
(à anneau non métallique), à pas fin
ICS: 21.060.20
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
BE CONSIDERED IN THE LIGHT OF THEIR
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
NATIONAL REGULATIONS.
RECIPIENTS OF THIS DRAFT ARE INVITED
TO SUBMIT, WITH THEIR COMMENTS,
NOTIFICATION OF ANY RELEVANT PATENT
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Reference number
ISO/DIS 10512:2024(en)
DRAFT
ISO/DIS 10512:2024(en)
International
Standard
ISO/DIS 10512
ISO/TC 2/SC 12
Fasteners — Prevailing torque
Secretariat: DIN
hexagon nuts — Regular nuts (with
Voting begins on:
non-metallic insert), with fine
pitch thread
Voting terminates on:
Fixations — Écrous hexagonaux autofreinés — Écrous normaux
(à anneau non métallique), à pas fin
ICS: 21.060.20
THIS DOCUMENT IS A DRAFT CIRCULATED
FOR COMMENTS AND APPROVAL. IT
IS THEREFORE SUBJECT TO CHANGE
AND MAY NOT BE REFERRED TO AS AN
INTERNATIONAL STANDARD UNTIL
PUBLISHED AS SUCH.
This document is circulated as received from the committee secretariat.
IN ADDITION TO THEIR EVALUATION AS
BEING ACCEPTABLE FOR INDUSTRIAL,
© ISO 2024
TECHNOLOGICAL, COMMERCIAL AND
USER PURPOSES, DRAFT INTERNATIONAL
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
STANDARDS MAY ON OCCASION HAVE TO
ISO/CEN PARALLEL PROCESSING
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on
BE CONSIDERED IN THE LIGHT OF THEIR
the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below
POTENTIAL TO BECOME STANDARDS TO
WHICH REFERENCE MAY BE MADE IN
or ISO’s member body in the country of the requester.
NATIONAL REGULATIONS.
ISO copyright office
RECIPIENTS OF THIS DRAFT ARE INVITED
CP 401 • Ch. de Blandonnet 8
TO SUBMIT, WITH THEIR COMMENTS,
CH-1214 Vernier, Geneva
NOTIFICATION OF ANY RELEVANT PATENT
Phone: [phone]
RIGHTS OF WHICH THEY ARE AWARE AND TO
PROVIDE SUPPORTING DOCUMENTATION.
Email: [e-mail]
Website: www.iso.org
Published in Switzerland Reference number
ISO/DIS 10512:2024(en)
ii
ISO/DIS 10512:2024(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Dimensions . 2
5 Requirements and reference International Standards . 3
6 Marking and labelling . 4
6.1 Marking on product . .4
6.2 Labelling on package .5
7 Designation . 5
Bibliography . 6

iii
ISO/DIS 10512:2024(en)
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 this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent
rights identified during the development of the document will be in the Introduction and/or on the ISO list of
patent declarations received (see www.iso.org/patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and expressions
related to conformity assessment, as well as information about ISO's adherence to the World Trade
Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www.iso.org/iso/foreword.html.
This document was prepared by Technical Committee ISO/TC 2, Fasteners, Subcommittee SC 12, Fasteners
with metric internal thread.
This third edition cancels and replaces the second edition (ISO 10512:2012) which has been technically
revised.
The main changes are as follows:
— the design principles of these nuts have been clarified in scope (see Note);
— style, relevant property classes and related quenching and tempering conditions for steel nuts have been
specified in Clause 5 in accordance with ISO 898-2, and property class 6 has been deleted (see Table 3);
— stainless steel nuts have been added in accordance with ISO 3506-2;
— M20×2 has been added, as well as non-preferred sizes 18 mm, 22 mm, 27 mm, 33 mm and 39 mm;
— d has been specified with two decimal places;
a,max
— h for size 20 mm has been increased so that regular, high and thin nuts have an identical room for the
max
prevailing torque feature (h – m ) to accommodate the non-metallic insert; h has therefore been
max min min
increased in accordance with the specified tolerance (see Table 2);
— specifications for marking and labelling have been added as Clause 6.
Any feedback or questions on this document should be directed to the user's national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

iv
DRAFT International Standard ISO/DIS 10512:2024(en)
Fasteners — Prevailing torque hexagon nuts — Regular nut
...