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1、WORLDWIDEGeneralSpecificationENGINEERINGGMW3362FastenersSTANDARDSMPointforExternalMetricThread,CoarsePitchFastenerswithnolocalizedscallops,fissures,underfill,flats,1Scopeorotherdiscontinuitiespermittedatthecrestofthethread.Athreadspecific“GO”gageshallpassTh
2、isstandardspecifiesthecharacteristicsofMfreelyoverfirst4threadsaftercoating.PointsforexternalmetricthreadedfastenerswithcoarsepitchM5,M6,M8,M10,M12,M14and3.1.3DogPoint.Thedogpointlength,z3,isaM16.Thepointisaddedtothespecifiednominalminimumlengthforthedogpoi
3、ntcylinder.Thelengthofthefastener.lengthofthedogpointcylindershallbemeasuredfromthepointontheleadthreadwherethelead2Referencesthreadfirstexceeds0.20timesthethreadpitchinheight(measuredfromthethreadroot)tothepointNote:Onlythelatestapprovedstandardsareonthecy
4、linderwheretheendradiusistangent.applicableunlessotherwisespecified.Thediameterofthedogpointcylinder,dx,shallbe2.1ExternalStandards/Specifications.largerthandxminimumwhenmeasuredattheNonetangentpoint.Dogpointcylinderdiameterdxshallbeheldforentiredogpointlen
5、gthz3,withnotaper2.2GMStandards/Specifications.allowed.GMW3001GMW30593.1.4RadiusPoint.Theradiuspointlength,z5,isaminimumlengthforthepointbeyondthedog3Requirementspoint.Theradiusofthispoint,r,isareferencedimensiononly,anditsshapemaynotbeatrue3.1Dimensions.Al
6、ldimensionsinthisstandardradiusafterthreading.Theendofthepointshallbearegiveninmillimeters(mm)unlessotherwisereasonablysquarewiththethreadaxisandthestated.edgemaybeirregular.Thetipdiameter,dy,isa3.1.1NominalLength.Thenominallengthofthemaximumfortheradiuspoi
7、nt.fastenerisl.Forluptoandincluding50mmthetoleranceonlshallbe+/-0.15.Forlover50mm3.1.5PointLength.Theoverallpointlength,z4,isamaximumlength.Itrepresentsthesumofthethetoleranceonlshallbe+/-0.25.Thenominaldogpointlengthandtheradiuspointlength.length,l,isthedi
8、stance,paralleltothefasteneraxis,fromthebearingsurfacetotheleadthread3.1.6MinimumThreadLength.Theminimumfullwherethethreadprofilefirstexceeds0.20timesthreadlengthmeasuredfromthebearingsurfaceisthethrea
