ANAMERICANNATIONALSTANDARDMachineScrewsandMachineScrewNutsASMEB18.6.3-2003(RevisionofASMEB18.6.3-1998)CopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwhenprintedASMEB18.6.3–2003(RevisionofASMEB18.6.3–1998)MachineScrewsandMachineScrewNutsANAMERICANNATIONALSTANDARDThreeParkAvenue•NewYork,NY10016CopyrightedmateriallicensedtoStanfordUniversitybyThomsonScientific(www.techstreet.com),downloadedonOct-05-2010byStanfordUniversityUser.Nofurtherreproductionordistributionispermitted.UncontrolledwDateofIssuance:June30,2005The2003editionofthisStandardisbeingissuedwithanautomaticaddendasubscriptionservice.Theuseofaddendaallowsrevisionsmadeinresponsetopublicreviewcommentsorcommitteeactionstobepublishedasnecessary.ThisStandardwillberevisedwhentheSocietyapprovestheissuanceofanewedition.ASMEissueswrittenrepliestoinquiriesconcerninginterpretationsoftechnicalaspectsofthisStandard.InterpretationsarepublishedontheASMEWebsiteundertheCommitteePagesathttp://www.asme.org/codes/astheyareissued,andwillalsobepublishedwithinthenexteditionoftheStandard.ASMEistheregisteredtrademarkofTheAmericanSocietyofMechanicalEngineers.ThiscodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.TheStandardsCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanopportunitytoparticipate.Theproposedcodeorstandardwasmadeavailableforpublicreviewandcommentthatprovidesanopportunityforadditionalpublicinputfromindustry,academia,regulatoryagencies,andthepublic-at-large.ASMEdoesnot“approve,”“rate,”or“endorse”anyitem,construction,proprietarydevice,oractivity.ASMEdoesnottakeanypositionwithrespecttothevalidityofanypatentrightsassertedinconnectionwithanyitemsmentionedinthisdocument,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityforinfringementofanyap...