ASTM_F_3042_-_13.pdf

Designation:F304213Standard Specification forNonferrous Hex Socket,Slotted Headless,and Square HeadSet Screws1This standard is issued under the fixed designation F3042;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.1.Scope1.1 This specification covers the requirements for nonfer-rous socket set screws sizes 0.125(#5)through 2.000 in.,square head set screws sizes 0.190(#10)through 1.500 in.,andslotted headless set screws 0.125(#5)through 0.750 in.indiameter manufactured from a number of nonferrous alloys inuse in the marine industry and the U.S.Navy subject toseawater wetting and salt atmosphere but that also may be usedin other applications.It is recommended that copper-basedalloys not be used in attempting to prevent mechanical com-ponents from rotating,such as locking shafts,because of thelow hardness of the alloys.Some alloys or sizes or both of setscrews may not be readily available.Manufacturers or suppli-ers should be contacted before design development or antici-pated procurement.1.2 UnitsThe values stated in inch-pound units are to beregarded as the standard.NOTE1A complete metric companion to Specification F3042 will bedevelopedF3042M;therefore,no metric equivalents are shown in thisspecification.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2B154 Test Method for Mercurous Nitrate Test for CopperAlloysE18 Test Methods for Rockwell Hardness of Metallic Ma-terialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE53 Test Method for Determination of Copper in UnalloyedCopper by GravimetryE54 Test Methods for Chemical Analysis of Special Brassesand Bronzes(Withdrawn 2002)3E55 Practice for Sampling Wrought Nonferrous Metals andAlloys for Determination of Chemical CompositionE62 Test Methods for Chemical Analysis of Copper andCopperAlloys(Photometric Methods)(Withdrawn 2010)3E75 Test Methods for Chemical Analysis of Copper-Nickeland Copper-Nickel-Zinc Alloys(Withdrawn 2010)3E76 Test Methods for Chemical Analysis of Nickel-CopperAlloys(Withdrawn 2003)3E120 Test Methods for Chemical Analysis of Titanium andTitanium Alloys(Withdrawn 2003)3E165 Practice for Liquid Penetrant Examination for GeneralIndustryE350 Test Methods for Chemical Analysis of Carbon Steel,Low-Alloy Steel,Silicon Electrical Steel,Ingot Iron,andWrought IronE354 Test Methods for Chemical Analysis of High-Temperature,Electrical,Magnetic,and Other Similar Iron,Nickel,and Cobalt AlloysE384 Test Method for Knoop and Vickers Hardness ofMaterialsE478 Test Methods for Chemical Analysis of Copper AlloysE1409 Test Method for Determination of Oxygen and Nitro-gen in Titanium and Titanium Alloys by Inert Gas FusionF788/F788M Specification for Surface Discontinuities ofBolts,Screws,and Studs,Inch and Metric SeriesF1470 Practice for Fastener Sampling for Specified Me-chanical Properties and Performance Inspection2.2 ASME Standards:4ASME B1.1 Unified Inch Screw Threads(UN and UNRThread Form)ASME B18.3 Socket Cap,Shoulder and Set Screws,Hexand Spline Keys(Inch Series)1This test method is under the jurisdiction of ASTM Committee F16 onFasteners and is the direct responsibility of Subcommittee F16.04 on NonferrousFasteners.Current edition approved Nov.1,2013.Published March 2014.DOI:10.1520/F3042-13.2For 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,Two 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 ASME B18.6.2 Slotted Head Cap Screws,Square Head SetScrews,and Slotted Headless Set Screws Inch Series2.3 SAE Standards:5AMS2485 Coating,Black OxideAMS2487 Anodic Treatment of Titanium and TitaniumAlloys Solution pH 12.4 MaximumAMS2488 Anodic TreatmentTitanium and Titanium Al-loys Solution pH 13 or HigherJ2656 Fastener Part StandardHexagon Socket,SquareHead,and Slotted Headless Set ScrewsInch Dimen-sioned2.4 Federal Standards and Specifications:QQ-N-286 Nickel-Copper-Aluminum Alloy,Wrought(UNSN05500)3.Classification3.1 The designation of the alloys of this specification shallbe consistent with the nonferrous designations in Table 1.4.O