1、Metric Continuous and Double-End StudsAN AMERICAN NATIO NAL STANDARDASME B18.31.1M-2008(Revision of ASME B18.31.1M-2005)Copyright 2008 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanfo
2、rd University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.ASME B18.31.1M-2008(Revision of ASME B18.31.1M-2005)Metric Continuousand Double-End StudsAN AMERICAN NATIONAL STANDARDCopyright 2
3、008 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution
4、 is permitted.Uncontrolled when printed.Date of Issuance:October 24,2008This Standard will be revised when the Society approves the issuance of a new edition.There willbe no addenda issued to this edition.ASME issues written replies to inquiries concerning interpretations of technical aspects of thi
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11、roduced in any form,in an electronic retrieval system or otherwise,without the prior written permission of the publisher.The American Society of Mechanical EngineersThree Park Avenue,New York,NY 10016-5990Copyright 2008 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.
12、A.Copyright 2008 by the American Society of Mechanical Engineers.No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or
13、 distribution is permitted.Uncontrolled when printed.CONTENTSForeword.ivCommittee Roster.viCorrespondence With the B18 Committee.vii1Introduction.12Comparison With ISO Documents.13Referenced Standards.14Terminology.15Dimensions.16Body Diameter.27Length.28Points.29Thread Length.210Screw Threads.211Ma
14、terials and Mechanical Properties.212Identification Symbols.313Finish.314Workmanship.315Straightness.316Inspection and Quality Assurance.317Dimensional Conformance.318Clearance Holes.319Designation.3Tables1Dimensions for Continuous-Thread Studs.42Dimensions for Clamping-Type Studs.53Dimensions for T
15、ap-End Studs(1.5D Engagement).64Body Dimensions for Double-End Studs.75Length Tolerances:LTfor Continuous-Thread and Clamping-Type Studs,and L forTap-End Studs.7Mandatory AppendixIStud Straightness,Referee Gage,and Gaging Procedures.9iiiCopyright 2008 by the American Society of Mechanical Engineers.
16、No reproduction may be made of this material without written consent of ASME.cCopyrighted material licensed to Stanford University by Thomson Scientific(),downloaded on Oct-05-2010 by Stanford University User.No further reproduction or distribution is permitted.Uncontrolled when printed.FOREWORDAmerican National Standards Committee B18 for the standardization of bolts,screws,nuts,rivets,and similar fasteners was organized in March 1922 as Sectional Committee B18 underthe aegis of the American En
