ASTM_A_563M_-_07_2013.pdf

Designation:A563M07(Reapproved 2013)Standard Specification forCarbon and Alloy Steel Nuts(Metric)1This standard is issued under the fixed designation A563M;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 chemical and mechanical re-quirements for eight property classes of hex and hex-flangecarbon and alloy steel nuts for general structural and mechani-cal uses on bolts,studs,and other externally threaded parts.NOTE1Throughout this specification,the term class means propertyclass.NOTE2Requirements for the four classes 5,9,10,and 12 areessentially identical with requirements given for these classes in ISO898/II.Requirements for Classes 8S and 10S are essentially identical withrequirements in an ISO 4775 Hexagon Nuts for High-Strength StructuralBolting with Large WidthAcross Flats,Product Grade B,Property Classes8 and 10.Classes 8S3 and 10S3 are not recognized in ISO standards.1.2 Classes 8S3 and 10S3 nuts have atmospheric corrosionresistance and weathering characteristics comparable to thoseof the steels covered in Specification A588/A588M.Theatmospheric corrosion resistance of these steels is substantiallybetter than that of carbon steel with or without copper addition(see 6.2).When properly exposed to the atmosphere,thesesteels can be used bare(uncoated)for many applications.1.3 The nut size range for which each class is applicable isgiven in the table on mechanical requirements.1.4 Appendix X1 gives guidance to assist designers andpurchasers in the selection of a suitable class.1.5 Appendix X2 gives data on the properties of slotted hexnuts and hex jam nuts.1.6 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.NOTE3This specification is the metric companion of SpecificationA563.2.Referenced Documents2.1 ASTM Standards:2A153/A153M Specification for Zinc Coating(Hot-Dip)onIron and Steel HardwareA325M Specification for Structural Bolts,Steel,HeatTreated 830 MPa Minimum Tensile Strength(Metric)A394 Specification for Steel Transmission Tower Bolts,Zinc-Coated and BareA490M Specification for High-Strength Steel Bolts,Classes10.9 and 10.9.3,for Structural Steel Joints(Metric)A588/A588M Specification for High-Strength Low-AlloyStructural Steel,up to 50 ksi 345 MPa Minimum YieldPoint,with Atmospheric Corrosion ResistanceA751 Test Methods,Practices,and Terminology for Chemi-cal Analysis of Steel ProductsB695 Specification for Coatings of Zinc Mechanically De-posited on Iron and SteelD3951 Practice for Commercial PackagingF568M Specification for Carbon and Alloy Steel ExternallyThreaded Metric Fasteners(Metric)(Withdrawn 2012)3F606M Test Methods for Determining the Mechanical Prop-erties of Externally and Internally Threaded Fasteners,Washers,and Rivets(Metric)F812 Specification for Surface Discontinuities of Nuts,Inchand Metric SeriesF1789 Terminology for F16 Mechanical FastenersG101 Guide for Estimating the Atmospheric Corrosion Re-sistance of Low-Alloy Steels2.2 ANSI Standards:4B 1.13M Metric Screw ThreadsM ProfileB 18.2.4.1M Metric Hex Nuts,Style 11This specification is under the jurisdiction of ASTM Committee F16 onFasteners and is the direct responsibility of Subcommittee F16.02 on Steel Bolts,Nuts,Rivets and Washers.Current edition approved Nov.1,2013.Published January 2014.Originallyapproved in 1980.Last previous edition approved in 2007 as A563M 07.DOI:10.1520/A0563M-07R13.2For 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 National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 B 18.2.4.2M Metric Hex Nuts,Style 2B 18.2.4.3M Metric Slotted Hex NutsB 18.2.4.4M Metric Hex Flange NutsB 18.2.4.5M Metric Hex Jam NutsB 18.2.4.6M Metric Heavy Hex Nuts2.3 ISO Standards:4ISO 898/II Mechanical Properties of Fasteners,Part II,NutsWith Specified Proof LoadsISO 4775 Hexagon Nuts for High-Strength Structural Bolt-ing with Large Width Across FlatsProduct GradeBProperty Classes 8 and 103.Terminology3.1 Terms used in this specification are defined in Termi-nology F1789 unless otherwise defined herein.4.Ordering Information4.1 Orders for nuts under this specification shall include thefollowing:4.1.1 Quantity(number of nuts);4.1.2 Nominal diameter and thread pitch;4.1