1、ICS 21.060.20Fasteners Surface discontinuitiesPart 2: Nuts(ISO 6157-2 : 1995)English version of DIN EN ISO 6157-2Verbindungselemente Oberflchenfehler Teil 2: Muttern (ISO 6157-2 : 1995)A comma is used as the decimal marker.National forewordThis standard has been published in accordance with a decisi
2、on taken by CEN/TC 185 to adopt, withoutalteration, International Standard ISO 6157-2 as a European Standard.The responsible German body involved in its preparation was the Normenausschuss Mechanische Verbin-dungselemente (Fasteners Standards Committee), Technical Committee Festigkeitsklassen Stahl.
3、The DIN Standards corresponding to the International Standards referred to in clause 2 of the EN are asfollows:ISO Standard DIN StandardISO 898-2 DIN EN 20898-2ISO 898-6 DIN EN ISO 898-6ISO 2320 DIN EN ISO 2320ISO 3269 DIN EN ISO 3269ISO 10484 DIN EN ISO 10484ISO 10485 DIN EN ISO 10485AmendmentsThe
4、specifications of DIN EN 493, July 1992 edition, are now included in three standards (DIN EN ISO 6157-2,DIN EN ISO 10484 and DIN EN ISO 10485).Previous editionsDIN 266: 1931-03; DIN 267-1: 1937-04; DIN 267-2: 1937-04; DIN 267: 1940-06, 1943-01, 1954-01,1960-12; DIN 267-4: 1968-05, 1971-10, 1983-08;
5、DIN 267-8: 1968-04, 1971-10; DIN 267-20: 1981-05,1984-10; DIN 267-21: 1981-06; DIN EN 493: 1992-07; DIN 589: 1931-07, 1934-01.DEUTSCHE NORM October 2004DIN EN ISO 6157-2 No part of this standard may be reproduced without the prior permission ofDIN Deutsches Institut fr Normung e.V., Berlin. Beuth Ve
6、rlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).Normenausschuss Bauwesen (NABau) im DINEnglish price group 10www.din.dewww.beuth.de03.05 9607375Continued overleaf.Document comprises 14 pages.This standard,together with DIN EN ISO 10484and DIN EN ISO
7、 10485,October 2004 editions,supersedes DIN EN 493,July 1992 edition.National Annex NAStandards referred to(and not included in Normative references and Annex ZA)DIN EN 20898-2 Mechanical properties of fasteners Part 2: Nuts with coarse pitch thread and specifiedproof load values (ISO 898-2 : 1992)D
8、IN EN ISO 898-6 Mechanical properties of fasteners Part 6: Nuts with fine pitch thread and specified proofload values (ISO 898-6 : 1994)DIN EN ISO 2320 Prevailing torque type steel hexagon nuts Mechanical and performance properties(ISO 2320 : 1997)DIN EN ISO 3269 Fasteners Acceptance inspection (ISO
9、 3269 : 2000)DIN EN ISO 10484 Widening test on nuts (ISO 10484 : 1997)DIN EN ISO 10485 Cone proof load test on nuts (ISO 10485 : 1991)Page 2DIN EN ISO 6157-2 : 2004-10English versionICS 21.060.20 Supersedes EN 493 : 1992.Management Centre: rue de Stassart 36, B-1050 BrusselsEuropean Committee for St
10、andardizationComit Europen de NormalisationEuropisches Komitee fr NormungFasteners Surface discontinuitiesPart 2: Nuts(ISO 6157-2 : 1995) 2004. CEN All rights of exploitation in any form and by any meansreserved worldwide for CEN national members.Ref. No. EN ISO 6157-2 : 2004 EElments de fixation Df
11、auts desurface Partie 2: Ecrous(ISO 6157-2 : 1995)Verbindungselemente Oberflchen-fehler Teil 2: Muttern(ISO 6157-2 : 1995)This European Standard was approved by CEN on 2004-07-01.CEN members are bound to comply with the CEN/CENELEC Internal Regulationswhich stipulate the conditions for giving this E
12、uropean Standard the status of anational standard without any alteration.Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Management Centre or to anyCEN member.The European Standards exist in three official versions (English, Fre
13、nch, German).A version in any other language made by translation under the responsibility of aCEN member into its own language and notified to the Management Centre hasthe same status as the official versions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, theCzech Republi
14、c, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands,Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland, andthe United Kingdom.July 2004EN ISO 6157-2Page 2EN ISO 6157-2 : 2004ForewordIntern
15、ational StandardISO 6157-2 : 1995 Fasteners Surface discontinuities Part 2: Nuts,which was prepared by ISO/TC 2 Fasteners of the International Organization for Standardization, has beenadopted by Technical Committee CEN/TC 185 Threaded and non-threaded mechanical fasteners and acces-sories, the Secr
16、etariat of which is held by DIN, as a European Standard.This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, and conflicting national standards withdrawn, by January 2005 at the latest.In accordance with the CEN/CENELEC
17、 Internal Regulations, the national standards organizations of the follow-ing countries are bound to implement this European Standard:Austria, Belgium, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary,Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malt
18、a, the Netherlands, Norway, Poland, Portugal,Slovakia, Slovenia, Spain, Sweden, Switzerland, and the United Kingdom.Endorsement noticeThe text of the International Standard ISO 6157-2 : 1995 was approved by CEN as a European Standard withoutany modification.NOTE: Normative references to internationa
19、l publications are listed in Annex ZA (normative).Page 3EN ISO 6157-2 : 2004Page 4EN ISO 6157-2 : 2004Page 5EN ISO 6157-2 : 2004Page 6EN ISO 6157-2 : 2004Page 7EN ISO 6157-2 : 2004Page 8EN ISO 6157-2 : 2004Page 9EN ISO 6157-2 : 2004Page 10EN ISO 6157-2 : 2004Page 11EN ISO 6157-2 : 2004Page 12EN ISO 6157-2 : 2004
