Designation:F836M−02(Reapproved2015)StandardSpecificationforStyle1StainlessSteelMetricNuts(Metric)1ThisstandardisissuedunderthefixeddesignationF836M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1ThisspecificationcoversthechemicalandmechanicalrequirementsforstainlesssteelmetricnutswithnominalthreaddiametersM1.6throughM36andintendedforuseinengineer-ingapplicationsrequiringgeneralcorrosionresistance.1.2Eightgroupsofstainlesssteelalloysarecovered,includingthreeaustenitic(GradesA1,A2,andA4),oneferritic(GradeF1),threemartensitic(GradesC1,C3,andC4),andoneprecipitationhardening(GradeP1).1.3Seventeenpropertyclassesarecovered,includingnineaustenitic,oneferritic,sixmartensitic,andoneprecipitationhardening.ThepropertyclasseswiththepermissiblealloysforeacharelistedinTable1.1.4ThisspecificationisbasedinconceptandcontentonISO3506.Thechemicalandmechanicalrequirementsspeci-fiedforallpropertyclasses,exceptasgivenin1.4.1,areessentiallyidenticalwithclassesofthesamedesignationinISO3506.1.4.1Thisspecificationincludes13ofthe16propertyclassescoveredinISO3506.Additionally,itincludespropertyclassesA1-70,A2–70,A4–70,A1–80,A2–80,andA4–80forproductswithnominalthreaddiameterslargerthanM20;andfournon-ISOpropertyclasses,C1-110,C4-110,C3-120,andP1-90.1.5Supplementaryrequirementsofanoptionalnatureareprovided,applicableonlywhenagreeduponbetweenthemanufacturerandthepurchaseratthetimeoftheinquiryandorder.1.6Suitablebolts,hexcapscrews,andstudsforusewithnutsincludedinthisspecificationarecoveredbySpecificationF738M.Unlessotherwisespecified,allbolts,hexcapscrews,andstudsusedwiththesenutsshallconformtotherequire-mentsofSpecificationF738Mandshallbeofthesamealloygroup.1.7ThevaluesstatedinSIunitsaretoberegardedass...
