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1、INTERNATIONA1.STANDARDISO965-3editionFourth2021-07ISOgenera1.purposemetricscrewthreadsTo1.erances一deviationsforscrewthreadsFi1.etagesmetriquesISOpourusagesgenerauxTo1.erances一Partie3:EcartsIimitespourJi1.etagesCOPYRIGHTPROTECTEDDOCUMENTISO2021岫rkdea/山thUcdOthcnviscjftc三orrtmcehDVBiwixuioiti08phnn11U
2、atiocBhrhotocp)Mng,ptbcatonpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanherequestedfromeitherISOattheaddressbe1.owOr1.sOXSmemberbodyinthecountryoftherequester.%,tft晒Iandonnet8CH-1214*crnicr,GenevaPhone：M1.22749O1.11帆禅igjWft.orgPub1.ishedinSwitzerhndContentsforeword2Sco
3、peoNormativereferencesTermsanddefinitions1.imitdeviations26Bib1.iographyForewordISO(theInternationa1.OrganizationforStandardization)isawor1.dwidefederationofnationa1.standardstdiugh(ISOtd0iPwf1.PbrjGgbOdyhitUBattet6tandbkiS(nowhhtaEmitteehasbeenestab1.ishedhastherighttoberepresentedonthatcommittee.I
4、nternationa1.organizations,governmenta1.andnon-governmenta1.,in1.iaisonwithISO.a1.sotakepartinthework.ISOco1.1.aboratesc1.ose1.ywiththee1.ectrotechnica1.standardization.Internationa1.E1.ectrotechnica1.Commission(IEC)ona1.1.mattersofTheproceduresusedtodeve1.opthisdocumentandthoseintendedforitsfurther
5、maintenanceare。智SFR幽of1.SOIEC(M1.槐notrttH邻MMfergCCOrdanCe酚Fhtheeditoria1.ru1.esoftheISO/IECDirectives.Part2(seewww.iso.org/direc1.ives).时歌ionrightsd般掂棚1n隔嗯琳娜ns副神鹿设游硕热刑出doc1.三r强心创1.subjectofanypatentrightsidentifiedduringthedeve1.opmerUU4iewU-w4JbeintheIntroductionand/orontheISO1.istofpatentdec1.arat
6、ionsreceived(seewww.iso.org/pa1.ents).Anytradeusedinthisconstitutenameendorsement.documentisinformationgivenfortheconvenienceofusersanddoesnotForanexp1.anationofthevo1.untarynatureofstandards,themeaningofISOspecifictermsand哪蝴蜘明瓶ationc。的福P奥爽融Mthe可的小潴1.n他微件时0W瞬翻般isoforeword.htn1.Thisdocumentwasprepare
7、dbyTechnica1.CommitteeISO/TC1,Screwthreads.Thisfourtheditioncance1.sandrep1.acesthethirdedition(ISO965-3:1998),whichhasbeentechnica1.1.yrevised.Themainchangescomparedtothepreviouseditionareasfo1.1.ows: inthedocumenttit1.e,4(constructionahasbeende1.eted; inC1.ausekthethirdparagraphhasbeenadded; inC1.
8、ause4,thephrasebasicprofi1.es*hasbeenrep1.acedby*basicprofi1.eandfundamenta1.deviation(firstparagraphofISO965-3:1998;secondparagraphofISO965-3:2020); hWeC1.1.ww4Mte1.effeU1.eI1thedeviationformu1.aandva1.uesfortheminordiameterofexterna1.threads inTab1.e1fourto1.erancec1.asses(4g,5g4g,8eand9e8e)havebe
9、enadded.A1.istofa1.1.partsintheISO965seriescanbefoundontheISOwebsite.AnyfeedbackorquestionsonthisdocumentShoWdMd晔*皿Omnationa1.standardsbody.Acomp1.ete1.istingofthesebodiescanbefoundatwww.iso.org/members.htm1.IS0965-3:2021(E)INTERNATIONA1.STANDARDISOgenera1.purposemetricscrewthreadsTo1.erances一1.imit
10、deviationsforscrewthreads1 Scopescrewthreads(M)conformingtoISO261havingbasicprofi1.einaccordancewithISO68-1.to1.erancedocumentisapp1.icab1.etoISOgenera1.purposemetricscrewthreadsWiththerecommended2 Normativereferencesconstitutesrequirements1.atesteditiondocument.referencedreferences,(inc1.udingamend
11、ments)app1.ies.app1.ies.3 Termsanddefinitionsnatthefo1.1.owingISOandIECmaintaintermino1.ogica1.databasesforUSeinStandan1.iZatiOaddresses:1.imitEIectropedia:avai1.ab1.eatHttps/iePedifhefg1.imitdeviationsaregivenin4Me-4.Coatingcoatedthreads,threadto1.erancesapp1.ynottoinanypartstransgressthemaximumoth
12、erwisestated.AfterNOTETheseprovisionsareintendedforthincoatings,forexamp1.ethoseobtainedbye1.ectrop1.ating.Part3:iISO2021-A1.1.rightsreservedThisdocumentspecifies1.imitdeviationsforpitchandcrestdiametersforISOgenera1.purposemetricThe1.imitdeviationsspecifiedarcderivedfromthefundamenta1.deviationsand
13、to1.erancesspecifiedinISO965-1.Thisc1.asses.Thefo1.1.owingdocumentsarcreferredtointhetextinSUChawaythatsomeora1.1.oftheircontentundatedreferences,theofthisoftheFordateddocumenton1.ytheanyeditioncitedForISO5408,ScrewthreadsVocabu1.aryForthepurposesofthispartofdocument,thetermsanddefinitionsgiveninISO
14、5408app1.y.ISOOn1.inebrowsingp1.atform：avai1.ab1.eathttps:WWWjSoQrgobp4IECdeviationsForinterna1.threadsaswe1.1.asexterna1.threads,theactua1.rootcontoursha1.1.notinanypointtransgressthebasicprofi1.eandfundamenta1.deviation.Fortheactua1.profi1.esha1.1.thepointbeforecoating,un1.essmateria1.1.imitsforpositionHorhrespective1.y.Tab1.e11.imitdeviationsBasicmajordiameterPitchInterna1.threadExterna1.threadTo1.erancec1.assPitchdiameterESE1.MinordiameterESE1.To1.er-ancec1.assPitchdiametereseiMajordiameteresei0,991,40.2
