SIST EN ISO 10513:2025
(Main)Fasteners - Prevailing torque hexagon nuts - High nuts (all metal), with fine pitch thread (ISO 10513:2025)
Fasteners - Prevailing torque hexagon nuts - High nuts (all metal), with fine pitch thread (ISO 10513:2025)
This document specifies the characteristics of prevailing torque (all metal) hexagon high nuts, in steel and stainless steel, with metric fine pitch thread 8 mm to 39 mm, and with product grades A and B.
NOTE These nuts are designed with an overall height hmin = mmin (as specified in ISO 898-2 and ISO 8674 for style 2) plus the prevailing torque feature. hmax has been established in function of hmin; therefore, the tolerance (hmax – hmin) does not follow the ISO code system for tolerances (IT system). The wrenching height mw,min corresponds to the values specified for style 1.
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.
Verbindungselemente - Sechskantmuttern mit Klemmteil - Hohe Muttern (Ganzmetallmuttern), mit Feingewinde (ISO 10513:2025)
Dieses Dokument legt die Eigenschaften von hohen Sechskantmuttern mit Klemmteil (Ganzmetallmuttern) aus Stahl und nichtrostendem Stahl mit metrischen Feingewinden von 8 mm bis 39 mm, und in Produktklassen A und B fest.
ANMERKUNG Diese Muttern sind mit einer Gesamthöhe von hmin = mmin (wie in ISO 898 2 und ISO 8674 für den Typ 2 festgelegt) plus Klemmteil gestaltet. hmax wurde als Funktion von hmin festgelegt, daher entspricht die Toleranz (hmax − hmin) nicht dem ISO-Code-System für Toleranzen (IT-System). Die Verrenkungshöhe mw,min entspricht den für Typ 1 angegebenen Werten.
Falls in bestimmten Fällen andere Festlegungen benötigt werden, können Festigkeitsklassen und Stahlsorten nichtrostender Stähle ISO 898 2 oder ISO 3506 2 entnommen werden.
Fixations - Écrous hexagonaux autofreinés - Écrous hauts (tout métal), à pas fin (ISO 10513:2025)
Le présent document spécifie les caractéristiques des écrous hauts hexagonaux autofreinés (tout métal), en acier et en acier inoxydable, à filetage métrique à pas fin de 8 mm à 39 mm, et de grades A et B.
NOTE Ces écrous sont conçus avec une hauteur totale hmin = mmin (tel que spécifié dans l'ISO 898-2 et l'ISO 8674 pour le style 2) plus le dispositif d’autofreinage. Les valeurs de hmax ont été calculées en fonction de hmin, de ce fait la tolérance (hmax – hmin) ne s’intègre pas dans le système de codification ISO pour les tolérances (IT system). La hauteur de prise de clé mw,min correspond aux valeurs spécifiées pour le style 1.
Si dans certains cas d’autres spécifications sont requises, les classes de qualité et les grades d’acier inoxydable peuvent être choisis dans l’ISO 898-2 ou l’ISO 3506-2.
Vezni elementi - Šestrobe zaščitne matice - Visoke matice (vse kovine) z drobnim navojem (ISO 10513:2025)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2025
Nadomešča:
SIST EN ISO 10513:2013
Vezni elementi - Šestrobe zaščitne matice - Visoke matice (vse kovine) z drobnim
navojem (ISO 10513:2025)
Fasteners - Prevailing torque hexagon nuts - High nuts (all metal), with fine pitch thread
(ISO 10513:2025)
Verbindungselemente - Sechskantmuttern mit Klemmteil - Hohe Muttern
(Ganzmetallmuttern), mit Feingewinde (ISO 10513:2025)
Fixations - Écrous hexagonaux autofreinés - Écrous hauts (tout métal), à pas fin (ISO
10513:2025)
Ta slovenski standard je istoveten z: EN ISO 10513:2025
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.
EN ISO 10513
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2025
EUROPÄISCHE NORM
ICS 21.060.20 Supersedes EN ISO 10513:2012
English Version
Fasteners - Prevailing torque hexagon nuts - High nuts (all
metal), with fine pitch thread (ISO 10513:2025)
Fixations - Écrous hexagonaux autofreinés - Écrous Verbindungselemente - Sechskantmuttern mit
hauts (tout métal), à pas fin (ISO 10513:2025) Klemmteil - Hohe Muttern (Ganzmetallmuttern), mit
Feingewinde (ISO 10513:2025)
This European Standard was approved by CEN on 21 June 2025.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10513:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 10513:2025) has been prepared by Technical Committee ISO/TC 2 " Fasteners "
in collaboration with Technical Committee CEN/TC 185 “Fasteners” the secretariat of which is held by
BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by December 2025, and conflicting national standards
shall be withdrawn at the latest by December 2025.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 10513:2012.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 10513:2025 has been approved by CEN as EN ISO 10513:2025 without any modification.
International
Standard
ISO 10513
Third edition
Fasteners — Prevailing torque
2025-06
hexagon nuts — High nuts (all
metal), with fine pitch thread
Fixations — Écrous hexagonaux autofreinés — Écrous hauts
(tout métal), à pas fin
Reference number
ISO 10513:2025(en) © ISO 2025
ISO 10513:2025(en)
© ISO 2025
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 10513:2025(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 . 4
6 Marking and labelling . 5
6.1 Marking on product . .5
6.2 Labelling on package .5
7 Designation . 5
Bibliography . 6
iii
ISO 10513:2025(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 document 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).
ISO draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). ISO takes no position concerning the evidence, validity or applicability of any claimed patent
rights in respect thereof. As of the date of publication of this document, ISO had not received notice of (a)
patent(s) which may be required to implement this document. However, implementers are cautioned that
this may not represent the latest information, which may be obtained from the patent database available at
www.iso.org/patents. ISO shall not be held responsible for identifying any or all such patent rights.
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, in collaboration with the European Committee for Standardization (CEN)
Technical Committee CEN/TC 185, Fasteners, in accordance with the Agreement on technical cooperation
between ISO and CEN (Vienna Agreement).
This third edition cancels and replaces the second edition (ISO 10513:2012) 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 (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 12 mm has been corrected to 12,30 mm (13,30 mm in the second edition came from a typing
max
error); h for size 24 mm, has been increased to 24,00 mm in order to have h ≥ D for the whole
max max
diameter range;
— 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
International Standard ISO 10513:2025(en)
Fasteners — Prevailing torque hexagon nuts — High nuts (all
metal), with fine pitch thread
1 Scope
This document specifies the characteristics of prevailing torque (all metal) hexagon high nuts, in steel and
stainless steel, with metric fine pitch thread 8 mm to 39 mm, and with product grades A and B.
NOTE These nuts are designed with an overall height h = m (as specified in ISO 898-2 and ISO 8674 for
min min
style 2) plus the prevailing torque feature. h has been established in function of h ; therefore, the tolerance
max min
(h – h ) does not follow the ISO code system for tolerances (IT system). The wrenching height m corresponds
max min w,min
to the values specified for style 1.
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.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes
requirements of this document. For dated references, only the edition cited applies. For undated references,
the latest edition of the referenced document (including any amendments) applies.
ISO 225, Fasteners — Bolts, screws, studs and nuts — Symbols and descriptions of dimensions
ISO 898-2, Fasteners — Mechanical properties of fasteners made of carbon steel and alloy steel — Part 2: Nuts
with specified property classes
ISO 965-1, ISO general purpose metric screw threads — Tolerances — Part 1: Principles and basic data
ISO 1891-4, Fasteners — Vocabulary — Part 4: Control, inspection, delivery, acceptance and quality
ISO 2320, Fasteners — Prevailing torque steel nuts — Functional properties
ISO 3269, Fasteners — Acceptance inspection
ISO 3506-2, Fasteners — Mechanical properties of corrosion-resistant stainless steel fasteners — Part 2: Nuts
with specified grades and property classes
ISO 4042, Fasteners — Electroplated coating systems
ISO 4759-1, Tolerances for fasteners — Part 1: Bolts, screws, studs and nuts — Product grades A, B and C
ISO 6157-2, Fasteners — Surface discontinuities — Part 2: Nuts
ISO 8991, Designation system for fasteners
ISO 8992, Fasteners — General requirements for bolts, screws, studs and nuts
ISO 10683, Fasteners — Non-electrolytically applied zinc flake coating systems
3 Terms and definitions
No terms and definitions are listed in this document.
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