EN ISO 4033:2023

Fasteners - Hexagon high nuts (style 2) (ISO 4033:2023)

This document specifies the characteristics of hexagon high nuts (style 2), in steel and stainless steel, with metric coarse pitch thread M5 to M39, and with product grades A and B.
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 - Hohe Sechskantmuttern (Typ 2) (ISO 4033:2023)

Dieses Dokument legt die Eigenschaften von hohen Sechskantmuttern (Typ 2) aus Stahl und nichtrostendem Stahl mit metrischen Regelgewinden M5 bis M39 und mit Produktklassen A und B fest.
Falls in bestimmten Fällen andere Festlegungen benötigt werden, können Festigkeitsklassen und Stahlsorten nichtrostender Stähle aus ISO 898 2 oder ISO 3506 2 entnommen werden.

Fixations - Écrous hauts hexagonaux (style 2) (ISO 4033:2023)

Le présent document spécifie les caractéristiques des écrous hauts hexagonaux (style 2), en acier et en acier inoxydable, à filetage métrique à pas gros M5 à M39, et de grades A et B.
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 visoke matice (tip 2) (ISO 4033:2023)

Ta dokument določa značilnosti šestrobih visokih matic (tip 2) iz jekla in nerjavnega jekla, z grobim metrskim navojem velikosti od M5 do M39 ter razredoma izdelave A in B.
Če se v določenih primerih zahtevajo druge specifikacije, je razrede lastnosti in tipe nerjavnega jekla mogoče izbrati v skladu s standardom ISO 898-2 ali ISO 3506-2.

General Information

• Status: Published
• Publication Date: 05-Sep-2023
• 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: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 06-Sep-2023
• Completion Date: 06-Sep-2023
• Ref Project: SIST EN ISO 4033:2023 - Fasteners - Hexagon high nuts (style 2) (ISO 4033:2023)

Relations

• Replaces: EN ISO 4033:2012 - Hexagon high nuts (style 2) - Product grades A and B (ISO 4033:2012)
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-november-2023
Vezni elementi - Šestrobe visoke matice (tip 2) (ISO 4033:2023)
Fasteners - Hexagon high nuts (style 2) (ISO 4033:2023)
Mechanische Verbindungselemente - Hohe Sechskantmuttern (Typ 2) (ISO 4033:2023)
Fixations - Écrous hauts hexagonaux (style 2) (ISO 4033:2023)
Ta slovenski standard je istoveten z: EN ISO 4033:2023
ICS:
21.060.20 Matice Nuts
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 4033
EUROPEAN STANDARD
NORME EUROPÉENNE
September 2023
EUROPÄISCHE NORM
ICS 21.060.20 Supersedes EN ISO 4033:2012
English Version
Fasteners - Hexagon high nuts (style 2) (ISO 4033:2023)
Fixations - Écrous hauts hexagonaux (style 2) (ISO Mechanische Verbindungselemente - Hohe
4033:2023) Sechskantmuttern (Typ 2) (ISO 4033:2023)
This European Standard was approved by CEN on 10 June 2023.

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
© 2023 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 4033:2023 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 4033:2023) 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 March 2024, and conflicting national standards shall
be withdrawn at the latest by March 2024.
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 4033:2012.
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 4033:2023 has been approved by CEN as EN ISO 4033:2023 without any modification.

INTERNATIONAL ISO
STANDARD 4033
Fourth edition
2023-08
Fasteners — Hexagon high nuts
(style 2)
Fixations — Écrous hauts hexagonaux (style 2)
Reference number
ISO 4033:2023(E)
ISO 4033:2023(E)
© ISO 2023
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 4033:2023(E)
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 4033:2023(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
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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 on the meaning of ISO specific terms and expressions related to conformity
assessment, as well as information about ISO's adherence to the WTO principles in the Technical
Barriers to Trade (TBT) see the following URL: Foreword - Supplementary information
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 fourth
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