Fasteners - Hexagon socket countersunk head screws with reduced loadability (ISO 10642:2019)

This Standard specifies the characteristics of hexagon socket countersunk head screws with reduced loadability due to head design, in steel and stainless steel, with metric coarse pitch threads M2 to M20, and with product grade A.

Mechanische Verbindungselemente - Senkschrauben mit Innensechskant mit reduzierter Belastbarkeit (ISO 10642:2019)

Dieses Dokument legt die Eigenschaften von Senkschrauben mit Innensechskant mit reduzierter Belastbarkeit aufgrund der Auslegung des Kopfes, aus Stahl und Edelstahl, mit metrischen Regelgewinden M2 bis M20 in Produktklasse A fest.
ANMERKUNG 1 Andere Möglichkeiten für Maße sind in ISO 888, ISO 965 1 und ISO 4753 angegeben.
ANMERKUNG 2 Die reduzierte Belastbarkeit (bezogen auf die Maße der Senkköpfe in Kombination mit der in diesem Dokument festgelegten Eindringtiefe des Innensechskantes) zieht eine Begrenzung der Mindestbruchkraft nach sich; siehe Tabelle 5.
ANMERKUNG 3 Besondere Aufmerksamkeit ist erforderlich, um ein Fluchten des Senkkopfes mit der Auflagefläche der Ansenkung in der Baugruppe sicherzustellen.

Fixations - Vis à tête fraisée à six pans creux à capacité de charge réduite (ISO 10642:2019)

Le présent document spécifie les caractéristiques des vis à tête fraisée à six pans creux à capacité de charge réduite du fait de la conception de la tête, en acier et en acier inoxydable, à filetage métrique à pas gros de M2 à M20, et de grade A.
NOTE 1 D'autres options de dimensions sont données dans l'ISO 888, l'ISO 965-1 et l'ISO 4753.
NOTE 2 La capacité de charge réduite (du fait des dimensions de la tête fraisée combinées avec la pénétration de l'empreinte six pans creux spécifiée dans le présent document) implique une limitation de la charge minimale de rupture à la traction; voir Tableau 5.
NOTE 3 Une attention toute particulière est nécessaire pour assurer l'alignement de la tête fraisée avec la fraisure de la surface d'appui au niveau de l'assemblage.

Vezni elementi - Vijaki z ugrezno glavo in notranjim šestkotnikom (imbus) z manjšo obremenljivostjo (ISO 10642:2019)

Ta standard določa značilnosti vijakov z ugrezno glavo in notranjim šestkotnikom (imbus) z manjšo obremenljivostjo zaradi zasnove glave, v jeklu in nerjavnem jeklu, z grobim metričnim navojem ISO velikosti od M2 do M20, in razredom izdelave A.

General Information

Status
Published
Public Enquiry End Date
15-Jul-2018
Publication Date
05-Nov-2019
Technical Committee
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
24-Oct-2019
Due Date
29-Dec-2019
Completion Date
06-Nov-2019

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SLOVENSKI STANDARD
SIST EN ISO 10642:2020
01-januar-2020
Nadomešča:
SIST EN ISO 10642:2004
SIST EN ISO 10642:2004/A1:2013
Vezni elementi - Vijaki z ugrezno glavo in notranjim šestkotnikom (imbus) z
manjšo obremenljivostjo (ISO 10642:2019)
Fasteners - Hexagon socket countersunk head screws with reduced loadability (ISO
10642:2019)

Mechanische Verbindungselemente - Senkschrauben mit Innensechskant mit reduzierter

Belastbarkeit (ISO 10642:2019)

Fixations - Vis à tête fraisée à six pans creux à capacité de charge réduite (ISO

10642:2019)
Ta slovenski standard je istoveten z: EN ISO 10642:2019
ICS:
21.060.10 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
SIST EN ISO 10642:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN ISO 10642:2020
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SIST EN ISO 10642:2020
EN ISO 10642
EUROPEAN STANDARD
NORME EUROPÉENNE
October 2019
EUROPÄISCHE NORM
ICS 21.060.10 Supersedes EN ISO 10642:2004
English Version
Fasteners - Hexagon socket countersunk head screws with
reduced loadability (ISO 10642:2019)

Fixations - Vis à tête fraisée à six pans creux à capacité Mechanische Verbindungselemente - Senkschrauben

de charge réduite (ISO 10642:2019) mit Innensechskant mit reduzierter Belastbarkeit (ISO

10642:2019)
This European Standard was approved by CEN on 17 August 2019.

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, Turkey 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

© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 10642:2019 E

worldwide for CEN national Members.
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SIST EN ISO 10642:2020
EN ISO 10642:2019 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

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SIST EN ISO 10642:2020
EN ISO 10642:2019 (E)
European foreword

This document (EN ISO 10642:2019) 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 April 2020, and conflicting national standards shall be

withdrawn at the latest by April 2020.

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 10642:2004.

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, Turkey and the

United Kingdom.
Endorsement notice

The text of ISO 10642:2019 has been approved by CEN as EN ISO 10642:2019 without any modification.

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SIST EN ISO 10642:2020
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SIST EN ISO 10642:2020
INTERNATIONAL ISO
STANDARD 10642
Third edition
2019-09
Fasteners — Hexagon socket
countersunk head screws with
reduced loadability
Fixations — Vis à tête fraisée à six pans creux à capacité de charge
réduite
Reference number
ISO 10642:2019(E)
ISO 2019
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SIST EN ISO 10642:2020
ISO 10642:2019(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2019

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
Fax: +41 22 749 09 47
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2019 – All rights reserved
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SIST EN ISO 10642:2020
ISO 10642:2019(E)
Contents Page

Foreword ........................................................................................................................................................................................................................................iv

1 Scope ................................................................................................................................................................................................................................. 1

2 Normative references ...................................................................................................................................................................................... 1

3 Terms and definitions ..................................................................................................................................................................................... 1

4 Dimensions and gauging of head ......................................................................................................................................................... 2

4.1 Dimensions ................................................................................................................................................................................................. 2

4.2 Gauging of head ...................................................................................................................................................................................... 6

5 Requirements and reference International Standards ................................................................................................ 7

6 Marking and labelling ..................................................................................................................................................................................... 8

6.1 Marking on product ............................................................................................................................................................................ 8

6.2 Labelling on package ......................................................................................................................................................................... 8

7 Designation ................................................................................................................................................................................................................ 9

Annex A (informative) Minimum ultimate tensile loads for bolts and screws with full

loadability, coarse pitch threads M2 and M2,5 ..................................................................................................................10

Bibliography .............................................................................................................................................................................................................................11

© ISO 2019 – All rights reserved iii
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SIST EN ISO 10642:2020
ISO 10642:2019(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 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 11,

Fasteners with metric external thread.

This third edition cancels and replaces the second edition (ISO 10642:2004), which has been technically

revised. It also incorporates the Amendment ISO 10642:2004/Amd.1:2012. The main changes compared

to the previous edition are as follows:

— the whole standard has been improved to clearly point out that these hexagon socket countersunk

head screws have reduced loadability because of their head design (head dimensions and penetration

of the hexagon socket);
— screws made of stainless steel have been added;
— detailed head configuration has been added (see Figure 4);

— M2 and M2,5 have been added; as their minimum ultimate tensile loads for full loadability are not

specified in ISO 898-1 and ISO 3506-1, they have been calculated with the same formulae accordingly

(see Annex A);

— the reference threaded length b has been increased to 3d for partially threaded screws M14 to M20,

so that these screws can be tensile tested in accordance with ISO 3506-1 (b ≥ 3d is required to

tensile test screws with reduced loadability);
— head height k has been added as reference dimension in Tables 1 and 2;
min

— wall thickness between driving feature and bearing face w has been replaced by the depth of the

min
internal driving feature t (same method as for hexalobular internal drive);
max

— D , D and F are pointed out as gauge dimensions in Table 3 (see also Figure 5);

a k

— the minimum nominal lengths of the standardized range have been determined in accordance with

footnote g of Tables 1 and 2 and therefore the shorter lengths for M4 to M20 were deleted.

iv © ISO 2019 – All rights reserved
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SIST EN ISO 10642:2020
ISO 10642:2019(E)

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.
© ISO 2019 – All rights reserved v
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SIST EN ISO 10642:2020
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SIST EN ISO 10642:2020
INTERNATIONAL STANDARD ISO 10642:2019(E)
Fasteners — Hexagon socket countersunk head screws
with reduced loadability
1 Scope

This document specifies the characteristics of hexagon socket countersunk head screws with reduced

loadability due to head design, in steel and stainless steel, with metric coarse pitch threads M2 to M20,

and with product grade A.
NOTE 1 Other dimensional options are given in ISO 888, ISO 965-1 and ISO 4753.

NOTE 2 The reduced loadability (related to the countersunk head dimensions in combination with penetration

of the hexagon socket specified in this document) implies a limitation of ultimate tensile load; see Table 5.

NOTE 3 Particular attention is needed to ensure alignment of the countersunk head with the bearing surface

of the countersink in the assembly.
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 898-1, Mechanical properties of fasteners made of carbon steel and alloy steel — Part 1: Bolts, screws

and studs with specified property classes — Coarse thread and fine pitch thread
ISO 965-1, ISO general purpose metric screw threads — Toleranc
...

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