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1、Z5XISOInternationalStandardISO10512Thirdedition2025-06ISO2025FastenersPrevailingtorquehexagonnutsRegularnuts(withnon-metallicinsert),withfinepitchthreadFixationsEcroushexagonauxautofreinesEcrousnormaux(aanneaunonmetallique),apasfinReferencenumberISO10512:2025(en)COPYRIGHTPROTECTEDDOCUMENTISO2025Allr
2、ightsreserved.Unlessotherwisespecified,orrequiredinthecontextofitsimplementation,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechanical,includingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.Permissioncanberequestedfromei
3、therISOattheaddressbeloworISO,smemberbodyinthecountryoftherequester.ISOcopyrightofficeCP401Ch.deBlandonnet8CH-1214Vernier,GenevaPhone:+41227490111Email:copyrightiso.orgWebsite:www.iso.orgPublishedinSwitzerlandContentsPageForewordiv1 Scope12 Normativereferences13 Termsanddefinitions14 Dimensions25 Re
4、quirementsandreferenceInternationalStandards46 Markingandlabelling56.1 Markingonproduct56.2 Labellingonpackage57 Designation5Bibliography6ForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandar
5、dsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththe
6、InternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.TheproceduresusedtodevelopthisdocumentandthoseintendedforitsfurthermaintenancearedescribedintheISO/IECDirectives,Part1.Inparticular,thedifferentapprovalcriterianeededforthedifferenttypesofISOdocumentshouldbenot
7、ed.ThisdocumentwasdraftedinaccordancewiththeeditorialrulesoftheISO/IECDirectives,Part2(seeWWW.iso.org/directives).ISOdrawsattentiontothepossibilitythattheimplementationofthisdocumentmayinvolvetheuseof（八）patent(三).ISOtakesnopositionconcerningtheevidence,validityorapplicabilityofanyclaimedpatentrights
8、inrespectthereof.Asofthedateofpublicationofthisdocument,ISOhadnotreceivednoticeof（八）patent(三)whichmayberequiredtoimplementthisdocument.HoweverlImplementersarecautionedthatthismaynotrepresentthelatestinformation,whichmaybeobtainedfromthepatentdatabaseavailableatWWW.iso.org/patents.ISOshallnotbeheldre
9、sponsibleforidentifyinganyorallsuchpatentrights.Anytradenameusedinthisdocumentisinformationgivenfortheconvenienceofusersanddoesnotconstituteanendorsement.Foranexplanationofthevoluntarynatureofstandards,themeaningofISOspecifictermsandexpressionsrelatedtoconformityassessment,aswellasinformationaboutIS
10、OsadherencetotheWorldTradeOrganization(WTO)principlesintheTechnicalBarrierstoTrade(TBT工seeWWW.iso.org/iso/foreword.htmLThisdocumentwaspreparedbyTechnicalCommitteeISO/TC2,Fasteners,SubcommitteeSC12,Fastenerswithmetricinternalthread,incollaborationwiththeEuropeanCommitteeforStandardization(CEN)Technic
11、alCommitteeCEN/TC185,Fasteners,inaccordancewiththeAgreementontechnicalcooperationbetweenISOandCEN(ViennaAgreement).Thisthirdeditioncancelsandreplacesthesecondedition(ISO10512:2012)whichhasbeentechnicallyrevised.Themainchangesareasfollows: thedesignprinciplesofthesenutshavebeenclarifiedinScope(seeNot
12、e); style,relevantpropertyclassesandrelatedquenchingandtemperingconditionsforsteelnutshavebeenspecifiedinClaUSe5inaccordancewithISO898-2,andpropertyclass6hasbeendeleted(seeTable3; stainlesssteelnutshavebeenaddedinaccordancewithISO3506-2; M202hasbeenadded,aswellasnon-preferredsizes18mm,22mm,27mm,33mm
13、and39mm; da,maxhasbeenspecifiedwithtwodecimalplaces;一hmaxforsize20mmhasbeenincreasedsothatregular,highandthinnutshaveanidenticalroomfortheprevailingtorquefeature(TImw-血局”)toaccommodatethenon-metallicinsert;h-hasthereforebeeni*j，v-IIldXIIllIljIIllIlincreasedinaccordancewiththespecifiedtolerance(seeTa
14、ble2); specificationsformarkingandlabellinghavebeenaddedasClause6.Anyfeedbackorquestionsonthisdocumentshouldbedirectedtotheusersnationalstandardsbody.AcompletelistingofthesebodiescanbefoundatWWW.iso.org/membnrs.htmLFastenersPrevailingtorquehexagonnutsRegularnuts(withnon-metallicinsert),withfinepitch
15、thread1 ScopeThisdocumentspecifiesthecharacteristicsofprevailingtorquehexagonregularnuts(withnon-metallicinsert),insteelandstainlessSteeLwithmetricfinepitchthread8mmto39mm,andwithproductgradesAandB.NOTEThesenutsaredesignedwithanoverallheightequaltommin(asspecifiedinISO898-2andISO8673forstyle1)plusth
16、eprevailingtorquefeature.Theheightoftheprevailingtorquefeature(力ma-mminforthenon-metallicinsertisidenticalforregular,highandthinnutsforagivendiameter.Ifincertaincasesotherspecificationsarerequested,propertyclassesandstainlesssteelgradescanbeselectedfromISO898-2orISO3506-2.2 NormativereferencesThefollowingdo
