EN ISO 21670:2014

SLOVENSKI STANDARD
01-julij-2014
1DGRPHãþD
SIST EN ISO 21670:2004
Vezni elementi - Šestroba matica s krajcem za privarjenje (ISO 21670:2014)
Fasteners - Hexagon weld nuts with flange (ISO 21670:2014)
Sechskant-Schweißmuttern mit Flansch (ISO 21670:2014)
Fixations - Écrous hexagonaux à souder, à embase plate (ISO 21670:2014)
Ta slovenski standard je istoveten z: EN ISO 21670:2014
ICS:
21.060.20 Matice Nuts
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD
EN ISO 21670
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2014
ICS 21.060.20 Supersedes EN ISO 21670:2003
English Version
Fasteners - Hexagon weld nuts with flange (ISO 21670:2014)
Fixations - Écrous hexagonaux à souder, à embase plate Mechanische Verbindungselemente - Sechskant-
(ISO 21670:2014) Schweißmuttern mit Flansch (ISO 21670:2014)
This European Standard was approved by CEN on 13 April 2014.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, 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: Avenue Marnix 17, B-1000 Brussels
© 2014 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 21670:2014 E
worldwide for CEN national Members.

Contents Page
Foreword .3

Foreword
This document (EN ISO 21670:2014) 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 DIN.
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 November 2014, and conflicting national standards shall be withdrawn
at the latest by November 2014.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 21670:2003.
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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 21670:2014 has been approved by CEN as EN ISO 21670:2014 without any modification.

INTERNATIONAL ISO
STANDARD 21670
Second edition
2014-05-15
Fasteners — Hexagon weld nuts with
flange
Fixations — Écrous hexagonaux à souder, à embase plate
Reference number
ISO 21670:2014(E)
©
ISO 2014
ISO 21670:2014(E)
© ISO 2014
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ii © ISO 2014 – All rights reserved

ISO 21670:2014(E)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Dimensions . 1
4 Technical delivery conditions . 3
4.1 General requirements . 3
4.2 Material . 3
4.3 Tolerances . 3
4.4 Mechanical properties . 3
4.5 Surface finish . 3
4.6 Surface integrity. 4
4.7 Acceptance inspection . 4
5 Designation . 4
6 Marking . 4
7 Connecting dimensions .
...