Designation:F3042−13StandardSpecificationforNonferrousHexSocket,SlottedHeadless,andSquareHeadSetScrews1ThisstandardisissuedunderthefixeddesignationF3042;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcoverstherequirementsfornonfer-roussocketsetscrewssizes0.125(#5)through2.000in.,squareheadsetscrewssizes0.190(#10)through1.500in.,andslottedheadlesssetscrews0.125(#5)through0.750in.indiametermanufacturedfromanumberofnonferrousalloysinuseinthemarineindustryandtheU.S.Navysubjecttoseawaterwettingandsaltatmospherebutthatalsomaybeusedinotherapplications.Itisrecommendedthatcopper-basedalloysnotbeusedinattemptingtopreventmechanicalcom-ponentsfromrotating,suchaslockingshafts,becauseofthelowhardnessofthealloys.Somealloysorsizesorbothofsetscrewsmaynotbereadilyavailable.Manufacturersorsuppli-ersshouldbecontactedbeforedesigndevelopmentorantici-patedprocurement.1.2Units—Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.NOTE1—AcompletemetriccompaniontoSpecificationF3042willbedeveloped—F3042M;therefore,nometricequivalentsareshowninthisspecification.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2B154TestMethodforMercurousNitrateTestforCopperAlloysE18TestMethodsforRockwellHardnessofMetallicMa-terialsE29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecificationsE53TestMethodforDeterminationofCopperinUnalloyedCopperbyGravimetryE54TestMethodsforChemicalAnalysisofSpecialBrassesandBronzes(Withdrawn2002)3E55PracticeforSamplingWroughtNonferrousMetalsandAlloysforDeterminationofChemicalCompos...
