EN ISO 7719 2025.docx

EuropeanstandardNormeeuropeenneEuropaischenormICS21.060.20ENISO7719June2025SupersedesENISO7719:2012,ENISO7719:2012/AC:2013EnglishVersionFasteners-Prevailingtorquehexagonnuts-RegularnutsallmetalISO7719:2025Fixations-Ecroushexagonauxautofreines-Ecrousnormaux(toutmetal)(ISO7719:2025)Verbindungselemente-SechskantmutternmitKlemmteil-NormalhoheMuttern(Ganzmetallmuttern)(ISO7719:2025)ThisEuropeanStandardwasapprovedbyCENon16June2025.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCEN-CENELECManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCEN-CENELECManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TiirkiyeandUnitedKingdom.要EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITEEUROPEENDENORMALISATIONEuropaischeskomiteefurnormungCEN-CENELECManagementCentre:RuedelaScience23,B-1040Brussels©2025CENAllrightsofexploitationinanyformandbyanymeansreservedRef.No.ENISO7719:2025EworldwideforCENnationalMembers.ContentsPageEuropeanforeword3EuropeanforewordThisdocument(ENISO7719:2025)hasbeenpreparedbyTechnicalCommitteeISO/TC2"Fasteners"incollaborationwithTechnicalCommitteeCEN/TC185"Fasteners“thesecretariatofwhichisheldbyBSLThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextorbyendorsement,atthelatestbyDecember2025,andconflictingnationalstandardsshallbewithdrawnatthelatestbyDecember2025.Attentionisdrawntothepossibilitythatsomeoftheelementsofthisdocumentmaybethesubjectofpatentrights.CENshallnotbeheldresponsibleforidentifyinganyorallsuchpatentrights.ThisdocumentsupersedesENISO7719:2012,ENISO7719:2012/AC:2013.Anyfeedbackandquestionsonthisdocumentshouldbedirectedtotheusers'nationalstandardsbody/nationalcommittee.AcompletelistingofthesebodiescanbefoundontheCENwebsite.AccordingtotheCEN-CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,Bulgaria,Croatia,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,RepublicofNorthMacedonia,Romania,Serbia,Slovakia,Slovenia,Spain,Sweden,Switzerland,TiirkiyeandtheUnitedKingdom.EndorsementnoticeThetextofISO7719:2025hasbeenapprovedbyCENasENISO7719:2025withoutanymodification.ISOInternationalStandardISO7719Fourthedition2025-06©ISO2025FastenersPrevailingtorquehexagonnutsRegularnuts(allmetal)FixationsEcroushexagonauxautofreinesEcrousnormaux(toutmetal)ReferencenumberISO7719:2025(en)COPYRIGHTPROTECTEDDOCUMENT©ISO2025Allrightsreserved.Unlessotherwisespecified,orrequiredinthecontextofitsimplementation,nopartofthispublicationmaybereproducedorutilizedotherwiseinanyformorbyanymeans,electronicormechanical,includingphotocopying,orpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanberequestedfromeitherISOattheaddressbeloworISO,smemberbodyinthecountryoftherequester.ISOcopyrightofficeCP401Ch.deBlandonnet8CH-1214Vernier,GenevaPhone:+41227490111Email:copyrightiso.orgWebsite:www.iso.orgPublishedinSwitzerlandContentsPageForewordiv1 Scope12 Normativereferences13 Termsanddefinitions14 Dimensions25 RequirementsandreferenceInternationalStandards46 Markingandlabelling56.1 Markingonproduct56.2 Labellingonpackage57 Designation5Bibliography6ForewordISO(theInternationalOrganizationforStandardization)isaworldwidefederationofnationalstandardsbodies(ISOmemberbodies).TheworkofpreparingInternationalStandardsisnormallycarriedoutthroughISOtechnicalcommittees.Eachmemberbodyinterestedinasubjectforwhichatechnicalcommitteehasbeenestablishedhastherighttoberepresentedonthatcommittee.Internationalorganizations,governmentalandnon-governmental,inliaisonwithISO,alsotakepartinthework.ISOcollaboratescloselywiththeInternationalElectrotechnicalCommission(IEC)onallmattersofelectrotechnicalstandardization.TheproceduresusedtodevelopthisdocumentandthoseintendedforitsfurthermaintenancearedescribedintheISO/IECDirectives,Part1.Inparticular,thedifferentapprovalcriterianeededforthedifferenttypesofISOdocumentshouldbenoted.ThisdocumentwasdraftedinaccordancewiththeeditorialrulesoftheISO/IECDirectives,Part2(seeWWW.iso.