Designation:F541−12StandardSpecificationforAlloySteelEyebolts1ThisstandardisissuedunderthefixeddesignationF541;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope*1.1Thisspecificationcoversforged,quenchedandtempered,alloysteelthreadedeyeboltswithimprovedtough-nesspropertiesandintendedprimarilyforlowtemperatureapplications.Theeyeboltsarechemicallyandmetallurgicallyconstitutedtoproducealowtransitiontemperaturetominimizebrittlefailure.Maximumthreadsizeis2.500in.(63.50mm).1.2Theeyeboltsarefurnishedintwotypes,asfollows:1.2.1Type1—StraightShankEyebolt.1.2.2Type2—ShoulderEyebolt.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.Thevaluesinparenthesesareforinformationonly.2.ReferencedDocuments2.1ASTMStandards:2A370TestMethodsandDefinitionsforMechanicalTestingofSteelProductsA574SpecificationforAlloySteelSocket-HeadCapScrewsA751TestMethods,Practices,andTerminologyforChemi-calAnalysisofSteelProductsE10TestMethodforBrinellHardnessofMetallicMaterialsE18TestMethodsforRockwellHardnessofMetallicMa-terialsE112TestMethodsforDeterminingAverageGrainSizeE340TestMethodforMacroetchingMetalsandAlloysE709GuideforMagneticParticleTestingF606TestMethodsforDeterminingtheMechanicalProper-tiesofExternallyandInternallyThreadedFasteners,Washers,DirectTensionIndicators,andRivetsF1470PracticeforFastenerSamplingforSpecifiedMe-chanicalPropertiesandPerformanceInspection2.2ASMEStandards:3B1.1UnifiedScrewThreadsB18.15ForgedEyeboltsB18.24PartIdentifyingNumber(PIN)CodeSystemStan-dardforB18FastenerProducts3.OrderingInformation3.1Ordersforeyeboltsunderthisspecificationshallincludethefollowinginformationtoadequatelydescribethepart:3.1.1ASTMspecificationnumberanddateofissue,3.1.2Nameofpart(alloysteeleyebolts),3.1.3R...
