Designation:A574−17StandardSpecificationforAlloySteelSocket-HeadCapScrews1ThisstandardisissuedunderthefixeddesignationA574;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thisspecificationcoverstherequirementsforquenchedandtemperedalloysteelhexagonsocket-headcapscrews,0.060through4in.indiameterwherehighstrengthisrequired.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thefollowinghazardcaveatpertainsonlytothetestmethodportions,sections5.1,5.6,8,and12,ofthisspecifi-cation.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2A751TestMethods,Practices,andTerminologyforChemi-calAnalysisofSteelProductsE112TestMethodsforDeterminingAverageGrainSizeF606/F606MTestMethodsforDeterminingtheMechanicalPropertiesofExternallyandInternallyThreadedFasteners,Washers,DirectTensionIndicators,andRivetsF788SpecificationforSurfaceDiscontinuitiesofBolts,Screws,andStuds,InchandMetricSeriesF1470PracticeforFastenerSamplingforSpecifiedMe-chanicalPropertiesandPerformanceInspectionF1789TerminologyforF16MechanicalFastenersF1940TestMethodforProcessControlVerificationtoPreventHydrogenEmbrittlementinPlatedorCoatedFastenersF2282SpecificationforQ...
