1、INTERNATIONA1.STANDARDISO3408-2editionSeCOnd202105Ba1.1.screws一加a1.diameters,1.eads,nutdimensionsandmountingbo1.ts一MetricseriesVisdbi1.1.esPartie2:Diamitresctpash61.icoidauxnominauxetdimensionsdesecrousetbou1.onsdemontageSeriemetriqueReferencenumberISO340822021(E)COPYRIGHTPROTECTEDDOCUMENTISO2021岫rk
2、dea/山thUcdOthcnviscjftc三orrtmcehDVBiwixuioiti08phnn11UatiocBhrhotocp)Mng,ptbcatonpostingontheinternetoranintranet,withoutpriorwrittenpermission.PermissioncanherequestedfromeitherISOattheaddressbe1.owOr1.sOXSmemberbodyinthecountryoftherequester.%,tft晒Iandonnet8CH-1214*crnicr,GenevaPhone：M1.22749O1.11
3、帆禅igjWft.orgPub1.ishedinSwitzerhndUnitsdiametermmF1.angemountingbo1.tdiametermmScrewheadcounterborePart7mmdiameterrd1.1.z,mmCentringdiameter1.engthThisdocumentspecifiesthenomina1.diametersandnomina1.1.eads,mountingdimensionsforba1.1.1ISO2021-A1.1.rightsreservedscrewnutsnomina1.1.eadandametricba1.1.w
4、hichIta1.sothepreferredofbeusedwhenitbecomesnecessarytodeviatefromtheprefenedcombinations.Thefo1.1.owingdomentsarereferredtointhetextinsuchawaythatsomeora1.1.oftheircontentundatedreferences,theofthisoftheFordateddocumenton1.ytheanyeditioncitedForISO3408-1,Ba1.1.screwsPart1:Vocabu1.aryanddesignationF
5、orthepurposesofthisdocument,thete11nsanddefinitionsgiveninISO3408-1app1.y.ISOOn1.inebrowsingp1.atform:avai1.ab1.eathttps:/www.iso.org/obp4 IECSymboIsNomina1.diametermmDiMountingbo1.tpitchcirc1.ediametermmDsF1.angeouterdiametermmDiAxia1.1.oadattheopening1.imitofthenutf1.angekN1.i1.j1.BF1.ange1.engthm
6、mF1.atf1.angewidthmm1.io1.ubricationportthread1.engthmm伊，Nomina1.1.eadmmThreadfor1.ubricationportTaTighteningtorqueofonebo1.tNm5 Nomina1.diameters,nomina1.1.eadsandtheircombinationsNomina1.diameters,nomina1.1.eadsandtheircombinationsareshowninTab1.e1.Preferredcombinationofnomina1.diameterand1.eadare
7、high1.ightedingreyandbo1.d.-SO34082:2021NCmirU1.1.diuI1.1.1.1.1.NPminaI帆dPbmmIue1.U1.juIiiiiiji1.522.5345681012IS16202530324050415I1.52611.522.5510811.522.5345681012101.522.5345681012201222.5345681012151620253014223345681012IS16202530162.S34S681012IS1620253040203456810121516202530324050254S681012151
8、6202530324050284S681012151620253032405032456810121516202530324050364S681012IS162025303240504056810121516202530324050455681012IS16202530324050505681012IS1620253032405063681012IS162025303240508068101215162025303240501001012151620253032405012512IS16202530324050Tab1.e1-Nomina)diameters,nomina1.1.eadsand
9、theircombinations50323052612021A=-whrsreservedNomiiui!diameterNumina1.1.endBa1.1.screwnuouterdiameterMoun(hbo1.1.PitCi1.CirdCdiameterBa1.1.screwnutf1.angetypeFUngemountingIw1.Udiam-cterF1.angeoucediane(erScrewheadcounterborei.11-IerCentringebo1.edoPoDiDiDS取Di1.i1.51.1.UQFaibHbmmmmmnummmmmmmmmmmmminm
10、mmmkNNmmin.max.stt.36565268986M1015338,5M6iM859.52636856729901410IS3SMG1.MS952636105878I1.1(X17.510183811M6IM1.O98,45140iS6S6729901410IS3485Rc1./8MBS9.S2640860769941410IS36BSRc1./8M8S9.S26401062821110417.510-184011Rc1./8M1.O98r4514DiI2S16749Z1111417.5ZU一IH4311Kc1./HM1.OH.451452566178Figure4.59961410
11、15378,5Rc1./8M859,42645B6S82TyPC6.C691001410-IS3B”Rc1./8MBS9,4264S106788I1.11017.510184311Rc1./8M1.O98.351505666829100!1.1015388,5Rc1./8M859.526SO870901111217.510IH4311Rc1./8M1.O98.451501072921111417.510-184411Rc1./8M1.O,HI51b01ZMNU7iy/14IZIZUZU一TiQf13kc!M1.Z14HX636801001112217.510184711Rc1./8M1.O98
12、451638821021112417.510184711Rc1./8M1.O98r45163108S10714131202022SO13Rc1./8M121S4W1.631290112141362020-225213Rc1./8M1215488Tab1.e3(continued)TsZ63123IK1535929ZZ(ITo1.rrjnoesforPiforba1.1.screwnuttypes86,6andC6($eF岫re$3,6.5andFre6X17.5Kc1./HMTb34O8,2KO21(E)I-Bbo*，cewE1.e1.Mor:Stnt1.C1.od.crr11t11csin
13、g1.e-bo1.tedjointtappedthreadpo11t(notthrwf-bcMttXopewthenutftj11eJtSpeofetdtc11j1.cforce,o111.ytenfaaortbc)e1.dPcarKstressd1111;tjtw11v三9.1.o*dt11trocktonfactornJCwnjFtoVDI2230QfiedfrTaHc次n:0.25,amo(jM&cm1.bocmieri1.ndomoattwithIfnenu1.threadofcetE:21。UUONItcacbe7.0皿t1.ghten1.nc1.IetarCrA-15forcorq
14、ucwrrMiIn1.tu1.parameterswereusedtortheJCreWoi1.cuhUcnInTib6e3.dumping1.engthKumpedpart)torTab1.e3:g2gdfromthectmp1.ngICnNh口ndthe1.engthof(hrt%defc11exJ二k2d.diameterofchrouho1.eOw三DZpossib1.eOutSkkdiameterofSubsUtutIonaJdeformationconeDt.OXShIC-Di-0;teerdamctrofsubstitutiona1.deformationconeDurar-Dt
15、Zh;出Jrnzrrof$IJbSHtUtKtfy1.defbrautMconeDA三MIN(0AMKk:DAgMr;IMWthbetweenbaUcso1.idJtd1.oadIrKradiKt1.onpointU=0,beciusctbe:hcmanufturcr;JointtypeSVS11M1.11gtoVD1.2230Nov.2015kture22:drnpkdIsFn=ONWbef1.OPef1.InRJtIbCInterface,numberofbo1.tsxatfbjcresu1.tstnxnthetypB1.H6,BKAAC6.dcft5rAMkHhv20ISvnI1.vn
16、rhAxia1.Nomina1.MamCforNomina1.1.eadBa1.1.screwnutouterdiameterMountingo1.tpitchcirIediameterBai1.Kcrcwnutf1.angetypeF1.angemountingbo1.ts;dianecerF1.angeouterc1.hmeterScrewheadcounterboredi*ametcrCentringdimmer1.engthCo1.1.ar1.engthF1.ange1.engthFWt11ng?widthCounterboredep(Threadfor1.ubricationport
17、Mountingbo1.ts1.oadattheop*ni11IimRofthenutTight-enittj*torqueofonebo1.t11angodoPhDiDi05Dbh1.i1.31.i1.e3QF*mmmmmmmmmmmmmmmmmmkNNmmin.maxst411!173,4235415M3071.4Sts12IB3,424S4ISM30,871.46113213,4295417M33581.46U1422X429S-417-M33581.46i242S1523*429S4IHM33M1.48ts1624X4325418M33381.4g220304.S40S一525M433
18、83.182,5542232Figure34.542-5-526-M43383.1gaSSH2434TypeB44.544SS27MQ3阳X1.10S1.519304.54010525M47.553.110242，24344.544-10-527-M47.553.1U1.a3s1.26364546ID一S2一M47.553.1122,526364.546-10-5M-M47553.1123s1.23(42551ID632一M57,$SM14226375.54610629M513,963U空2839554B106一M513,96314330425.551一10632-M513,963144834
19、455.55410b33M513,96,34Hr.mfurDifurki1.1.?KrEnu1.1.ypwB4,A6andCAF*“r3.4.S;ndFn6AMrutnv5forkui1.XrwGt1.n:I1.MticIoMurv111.ririnkb1.tm1.in1.tapptHIhread(notthrmff-bxn)UprfIrtrfQhN1.IMtf1.m1.7wifwrtv.1.cM*dQNPwc*Nproperty1.a*&Ar(kMhnZCnIyva1.k1.foeth*QPQyifiQdbo1.1.1.v11h.1.ai(n“Yurc(IZ)ih1.p11*Mtv1.rin
20、1.h1.rti11e,0,9.kadi111.roAtiunf1or11“ivonhytnVDI223(1rTjHw4：110.2,4mcutvmbedchrfrm,“twiy/，卡3Q“e2,5m*15m7.0n1.ihtvni11cfataIffur(u11vwrt:fri1.iuncofTkitv/Q1125:11111.ande11onjnto1.ZEmeewen?BCdfor(hescrewCJ1.GA300nintabks:cjmpnIEXth(dampedpart)forTjbk4o1.et1.frmthvmin;1.v11hani1.hW11*!hf(hru1.e11tmr
21、ho1.et)。puUHr1.ii*rmt*rfuM1.itwtincn11Dt,4PrfMuhi1.itu1.iiwa1.drmati11ntA*w。);di3tn1trnnbti!tr*1.11nDaMINSAx0；DA);Irphk1.wtwnhxicw1.idndkMintrv(be:hcmanufacturer：RCrutypeSV49cxM11gtoVDI22MNov.2015ptwc22:dampIOJd1$Fvr*=ONWbeni11;JtZinterface:numberofbohsxatfbccresu1.tsfronAetypes84.B6.魄孤C6Tab1.e4Moun
22、tingdimensionsforba1.1.screwnutsandmountingbo1.ts-Series334O8,2KO21(E)-SO34082:2021(E)02021-A1.1.Ii;Nomina1.IMmcfcrNomina1.IEdBa1.1.screwnutouterantrMountingoi1.pitchdr-IediameterBa1.1.;CreWnutangctypeF1.angemountingbo1.tsdUne(erF1.angeouterdmmv(erScrewheadcounterboredi*metcrCentringdiameter1.engthC
23、o1.1.ar1.engthF1.ange1.engthFbitIUngewidthCounterboredepthThreadfor1.ubricationportMount-bo1.UAxia1.Ioad!Ubeopening1.imitofthenutTightening1.crqu1.MS2616320652048616.675111012296v5M61.M629,7112S446S7ugure1.,S5.56995101126S5M61.MS20,1632555061TypeA6,5.5739.51011285v5M61.M5206x32565364C65.5769.5101129
24、5v5M61.M520,1632S8125871队68SH10-12326v5M6*1.M629.711251552562756.6891110IZ3485M6-1.M629,71125SS66.6821110123165M61.M629,711286587106851110123285M61.M629.711288627S6.6891110-1234监M61.M629,711210内829KIO1411)一IS38KSMG1.MB59.42b32454676.68111101231WM61.M629,711325S871851110-12326v$M61M629.7113Z65Z756t68
25、91.1.WIZ3405M6-1.M629,71141.vn*11WfurD1.frki1.1.serrwnuttypMB4.A6WM1.C4*FrvvsfordUi1.XBi?c(,n9kKh20t5：4vrr;|y1.fPedWrtbo1.tg，-M;hok1.11ft1.Heinnerda11non*wGtIiu1.Mtinn:Sfa1.tc1.d.ctrv11frici11kb111.t；ippw1.thrr；H1.(notthr小bA11p*mrrfth11mi1.Hu4tt11*ikfcnw.on1.yImsikkrv.rIrjnwrvnvfonw.1kMs1.dgPcrvwoPt
26、frtyMMIUuk1.1.i(11x1.yvu1.k1.forth*,pecifiQdbnh1.vrtkU1.iIiMtkmti1.1.p11S1.rvn1.urir;hft*nirv1.din1.rktinhtnrZmX1.J1.r1.VDI2230rTjH41101.2S,4rrajno*mbe1.cbrf(r&IoI1.rn:八m2ny23Qie2,5*15m-7.0*nti*htni;fatvat,1.5fur(trtuvwrftfc:fri*tiu11co0,125;1111Iandcompwx，Thefo1.km11gddtnjIrHR1.ZEmCySwtrvvfdfor(hes
27、crewo1.cu1.aUofiinMcs:pnIFSRh(CinrnP7part)for7jWc4C4k1.1.frtmhvtmpir:1.vrij?h311dthIvnythofhrt1.rrjvmmtI24fcdiwrHrfhr)!m1.DnOprruf，“M1.itUticG,eiwHsiUrWft-Dcrfsubstitutiona1.deformationcncDrw三Ih-fh;dmrtrrotSubstitutxmj1.ddormsbonc11cPa三MIN(OAEI,e);ksthbtww11bjcso1.idand1.oad111.rctiionpointU三,bcousc
28、the11ISbMfdon?hrre11pj11merrs11ndnc1.ciatsetyctor.ForadrjcvhtmmethVbiash34O8,2KO21(E)CgBifcjEQ17KQINk“h201S1.vxf,.,1.,v1.Nomina1.Jiune5mmF1.angeouterdhnwcerDhmmScrewheadcounterborediametermmmCentringdiameter1.engtht1.mmCo1.1.ar1.ength1.3mmF1.dng?kngU1.fmmFhKf1.angewidth1.emmCounterboredepth八mmThreadfor1.ubricationportQMount-1”bo1.esAxia1.1.oadattheopening1.imitof(henuef1.angeFaauatbkNTighteningtorqueofonebo1.tTabNm326682910014min.10max.IS38M61.M8SUtS9.4263236363636210S3Z568107465667076908182869299999IUB9910010411014141414UZQ1010101015i51515IS
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