REAFFIRMED2021IntentionallyleftblankANAMERICANNATIONALSTANDARDSTUBACMESCREWTHREADSASME/ANSIB1.8-1988(REVISIONOFANSIB1.8-1977)TheAmericanSocietyofMechanicalEngineers345East47thStreet,NewYork,N.Y.10017DateofIssuance:April30,1988ThisStandardwillberevisedwhentheSocietyapprovestheissuanceofanewedition.Therewill.benoaddendaorwritteninterpretationsoftherequirementsofthisStandardissuedtothisedition.ThiscodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.TheConsensusCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanopportunitytoparticipate.Theproposedcodeorstandardwasmadeavailableforpublicreviewandcommentwhichprovidesanopportunityforadditionalpublicinputfromindustry,academia,regulatoryagencies,andthepublic-at-large.ASMEdoesnot"approve,""rate,"or"endorse"anyitem,construction,proprietarydevice,oractivity.ASMEdoesnottakeanypositionwithrespecttothevalidityofanypatentrightsassertedinconnectionwithanyitemsmentionedinthisdocument,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityforinfringementofanyapplicableLettersPatent,norassumeanysuchliability.Usersofacodeorstandardareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrights,andtheriskofinfringementofsuchrights,isentirelytheirownresponsibility.Participationbyfederalagencyrepresentative(s1orperson(s)affiliatedwithindustryisnottobeinterpretedasgovernmentorindustryendorsementofthiscodeorstandard.ASMEacceptsresponsibilityforonlythoseinterpretationsissuedinaccordancewithgoverningASMEproceduresandpolicieswhichprecludetheissuanceofinterpretationsbyindividualvolunteers.Nopartofthisdocumentmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutthepriorwrittenpermissionofthepublisher.Copyright01988byTHEAMERICANSOCIETYOFMECHANICALENGINEERSAllRightsReservedPrintedinU.S.A.FOREWORD(ThisForewordisnotpartofASMElANSl61.8-1988.)TheStandardsCommitteeontheStandardizationandUnificationofScr...
