Din-939

DEUTSCHENORMFebruary1995IIStudswithalengthofengagementequaltoabout1,25dDIN-939ICs21.060.10SupersedesDecember1972edition.Descriptors:Fasteners,studs.Stiftschrauben;Einschraubendez1,25dInkeepingwithcurrentpracticeinstandardspublishedbytheInternationalOrganizationforStandardization(/SO),acommahasbeenusedthroughoutasthedecimalmarker:Dimensionsinmm1ScopeandfieldofapplicationThisstandardspecifiesdimensionsandtechnicaldeliveryconditionsforstudsintendedforusemainlyincastiron.AsspecifiedinDIN267-2,thestudendthreadshallbeproducedtotoleranceSk6asinDIN13-51,unlessthestudisdesignatedFo('withoutinterference-fitthread')orSn4.2DimensionsDIN78-Ktypenutendu(incompletethread):1,5Pmaximum.b,=studendb,=nutendContinuedonpages2to5.BeuthVerlagGrnbH,Berlin,haslheexclusiverightofsaleforGermanStandards(DIN-Normen).01.96DIN939Engl.Pricegroup6SalesNo.0106CopyrightDeutschesInstitutFurNormungE.V.ProvidedbyIHSunderlicensewithDINLicensee=Deere&CoCategories/9999663103,User=Zhang,KaiNotforResale,05/11/200819:52:41MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,``,,,,,,``,````````,,,,,,`,-`-`,,`,,`,`,,`---Page2DIN939Y45Table1:DimensionsM5M6(Mi)MBM10M12(M14)M16(M18)M20_---M8x1M10x1,25M12x1,25(M14~1.5)M16x1,5(MlBx1,5)M20W_-----M12x1,5----6,57,5910121518202225-d1420,75),9(M22)IM24(M22x1,5)M24x:161820222630343842465054222426283236404448525660-45495357616569732,O2,52,53,23,84,35,o5,o63636,37,51,01,251,251,61,92922952332323,23,8-----!,O3-!,233,65!,524,11?,824.573,024,88---5,856,526,96-9,4910,l11,613,l14,613,l15,l17,O19.0$,O1-6.429,187,1910,224225727228730231733234637640643646649652555558561564530532334135837639441244748351855458962566069673176770,O76,l82,l88,294,21O0106112118124130143155167179~94,910313011114011915012616013417014218015019015819916621o174220190240205260221280237300253320269340360X1x2IIIIIIIII1111S15Approximatemass(7,85kg/dm3)per1O00units,inkg1216(14)I&-27,245,441,O-i---,---505560-18065707519220521742,645,767,648,8229241254(95)1O011026627930332835337740242745164,2112120130140150160170T180190200476501525IFForI)to7,seepage3(continued)CopyrightDeutschesInstitutFurNormungE.V.ProvidedbyIHSunderlicensewithDINLicensee=Deere&CoCategories/9999663103,User=Zhang,KaiNotforResale,05/11/200819:52:41MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,``,,,,,,``,````````,,,,,,`,-`-`,,`,,`,`,,`---DIN939Page3164717561865197320822191Table1(concluded)x24,55,O5,O535,56363196320882364221325063027233826483194246227903360258729323527jsl5II27352952317033873605382240404257447546926055t----321136424361346139274694371142115028396144955361421O47795694446050636028471O534763614959563166955209591570285459619973624754975205421O0110587(95)167217841608128579021909472009922052244921862609232127692455292930882202402602803003203403603804001082117212621352Approximatemass(7,85kg/dm3)per1O00units,inkg785977104589611129521179100712461062131314901570111813801650117312291340164919701450156213261420151416071701179518891982207621702358254527332920310832953483367038584045III2300271230743694240828373216386125171296213358I4027l)Forlengths,1,of125mmorless.2,Forlengths,I,above125mrnupto200rnm.3,Forlengths,1,exceeding200mm.Lengthsabove400mmshallbegradedin20mmsteps.Bracketedsizesandintermediatelengthsshouldbeavoidedifpossible.Thezonebetweenthecontinuousthicklinesindicatestherangeofcommercialsizesofstudswithcoarsepitchthread.Studsofsizesabovethisrangecannotbemanufacturedwithanutendthreadlength,b,,asspecifiedinthetable.Insuchcases,b,willbeapproximatelyequalto1-(x,+3).Forsizesabovethedashedline,b,+xiwillbelessthan1,2b,.Thenutendofthesestudsshallberounded(¡.e.givenaDIN78-Ltypeend),unlesstheendisalreadymarkedwiththepropertyclass.CopyrightDeutschesInstitutFurNormungE.V.ProvidedbyIHSunderlicensewithDINLicensee=Deere&CoCategories/9999663103,User=Zhang,KaiNotforResale,05/11/200819:52:41MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,``,,,,,,``,````````,,,,,,`,-`-`,,`,,`,`,,`---Page4DIN9393TechnicaldeliveryconditionsTable2:TechnicaldeliveryconditionsMaterialGeneralrequirementsThreadIToleranceAsspecifiedinPropertyclass(material)I)MechanicalAsspecifiedinIpropertiesLimitdeviations,ProductgradegeometricaltolerancesAsspecifiedinIAcceptanceinspectionSteelAsspecifiedinIS08992.Studend:Sk6.INutend:6g.DIN13-51.1DIN13-12andDIN13-15.5.6,8.8or10.9DINEN20898-1.AIS04759-1.Propertyclass5.6:asprocessed.Propertyclasses8.8and10.9:(thermallyorchemically)blackened.DIN267-2shallapplywithregardtosurfaceroughness.DINEN26157-3shallapplywithregardtolimitsforsurfacediscontinuities.IS04042shallapplywithregardtoelectroplating.Thelimitsofthreadsizeshallalsoapplyaftercoating.AsspecifiedinIS03269.’)Useofotherpropertyclassesormaterialsshallbesubjecttoagreement.4DesignationDesignationofanM12studwithinterference-fitthreadasinDIN13-51,withanominallength,I,of80mm,andassignedtopropertyclass8.8:StudDIN939-Ml2X80-8.8DesignationofanMi2studwithoutinterference-fitthread(Fo),withanominallength,I,of80mm,andassignedtopropertyclass8.8:StudDIN939-Ml2FOX80-8.8Wherestudsaretobesuppliedwithadifferentthrea