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1、Designation:F436/F436M−16StandardSpeciÞcationfor1HardenedSteelWashersInchandMetricDimensionsThisstandardisissuedunderthefixeddesignationF436/F436M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevisi
2、on.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.4Thevaluesstatedineitherinch-poundunitsforinch
3、fastenersandSIunitsformetricfastenersandaretobe1.1Thisspecificationcoversthechemical,mechanical,andregardedseparatelyasstandard.Thevaluesstatedineachdimensionalrequirementsforhardenedsteelwashersforusewithfastenershavingnominalthreaddiametersof14through4systemmaynot
4、beexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesin.andM12throughM100.Thesewashersareintendedforfromthetwosystemsmayresultinnon-conformancewiththegeneral-purposemechanicalandstructuralusewithbolts,nuts,standard.studs,andother
5、internallyandexternallythreadedfasteners.Thesewashersaresuitableforusewithfastenerscoveredin1.5ThisstandarddoesnotpurporttoaddressalloftheSpecificationsA354andF3125.safetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappr
6、o-1.2Thewashersaredesignatedbytypedenotingthepriatesafetyandhealthpracticesanddeterminetheapplica-material,bystyledenotingtheshape,andbyinchormetricbilityofregulatorylimitationspriortouse.dimensions.1.2.1Thetypesofwasherscoveredare:2.ReferencedDocuments1.2.1.1Type1
7、—Carbonsteel.21.2.1.2Type3—Weatheringsteel.2.1ASTMStandards:1.2.1.3ThisspecificationprovidesforfurnishingType3toA354SpecificationforQuenchedandTemperedAlloySteelchemicalcompositionoraCorrosionIndex(CRI)of6orBolts,Studs,andOtherExternallyThreadedFastenershigheratthesu
8、ppliersoption.A588/A588MSpecificationforHigh-StrengthLow-Alloy1.2.2Thestylesofwasherscoveredare:StructuralSteel,upto50ksi[345MPa]MinimumYield1.2.2
