ASTM_F_836M_-_02_2015.pdf

Designation:F836M02(Reapproved 2015)Standard Specification forStyle 1 Stainless Steel Metric Nuts(Metric)1This standard is issued under the fixed designation F836M;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers the chemical and mechanicalrequirements for stainless steel metric nuts with nominal threaddiameters M1.6 through M36 and intended for use in engineer-ing applications requiring general corrosion resistance.1.2 Eight groups of stainless steel alloys are covered,including three austenitic(GradesA1,A2,andA4),one ferritic(Grade F1),three martensitic(Grades C1,C3,and C4),and oneprecipitation hardening(Grade P1).1.3 Seventeen property classes are covered,including nineaustenitic,one ferritic,six martensitic,and one precipitationhardening.The property classes with the permissible alloys foreach are listed in Table 1.1.4 This specification is based in concept and content onISO 3506.The chemical and mechanical requirements speci-fied for all property classes,except as given in 1.4.1,areessentially identical with classes of the same designation inISO 3506.1.4.1 This specification includes 13 of the 16 propertyclasses covered in ISO 3506.Additionally,it includes propertyclasses A1-70,A270,A470,A180,A280,and A480 forproducts with nominal thread diameters larger than M20;andfour non-ISO property classes,C1-110,C4-110,C3-120,andP1-90.1.5 Supplementary requirements of an optional nature areprovided,applicable only when agreed upon between themanufacturer and the purchaser at the time of the inquiry andorder.1.6 Suitable bolts,hex cap screws,and studs for use withnuts included in this specification are covered by SpecificationF738M.Unless otherwise specified,all bolts,hex cap screws,and studs used with these nuts shall conform to the require-ments of Specification F738M and shall be of the same alloygroup.1.7 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.2.Referenced Documents2.1 ASTM Standards:2A262 Practices for Detecting Susceptibility to IntergranularAttack in Austenitic Stainless SteelsA342/A342M Test Methods for Permeability of WeaklyMagnetic MaterialsA380 Practice for Cleaning,Descaling,and Passivation ofStainless Steel Parts,Equipment,and SystemsA493 Specification for Stainless Steel Wire and Wire Rodsfor Cold Heading and Cold ForgingA555/A555M Specification for General Requirements forStainless Steel Wire and Wire RodsA564/A564M Specification for Hot-Rolled and Cold-Finished Age-Hardening Stainless Steel Bars and ShapesA582/A582M Specification for Free-Machining StainlessSteel BarsA751 Test Methods,Practices,and Terminology for Chemi-cal Analysis of Steel ProductsD3951 Practice for Commercial PackagingE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsF606M Test Methods for Determining the Mechanical Prop-erties of Externally and Internally Threaded Fasteners,Washers,and Rivets(Metric)F738M Specification for Stainless Steel Metric Bolts,Screws,and Studs(Withdrawn 2014)3F1470 Practice for Fastener Sampling for Specified Me-chanical Properties and Performance Inspection2.2 ISO Standard:ISO 3506 Corrosion-Resistant Stainless Steel Fasteners41This specification is under the jurisdiction of ASTM Committee F16 onFastenersand is the direct responsibility of Subcommittee F16.04 on NonferrousFasteners.Current edition approved Sept.1,2015.Published November 2015.Originallyapproved in 1983.Last previous edition approved in 2010 as F536 02(2010).DOI:10.1520/F0836M-02R15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3The last approved version of this historical standard is referenced onwww.astm.org.4Available from American Society of Mechanical Engineers(ASME),ASMEInternational Headquarters,Three Park Ave.,New York,NY 10016-5990,http:/www.asme.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 2.3 ASME Standards:ASME B1.13M Metric Screw ThreadsM Profile4ASME B18.2.4.1M Metric Hex Nuts,Style 14NOTE1The following ASTM standards are noted for informationonly as suitable sources of material for the manufacture of nuts to thisspecification:Specifications A493,A564/A564M,and A582/A582M.3.Classification3.1 The designation of each property class is comprised ofthree parts,a letter followed by a single digit,followed byeither two or three digits(see Table 1).3.1.1 The letter indicates the general compos