8-10_Edtn_2006.pdf

AN AMERICAN NATIO NAL STANDARDTrack Boltsand NutsASME B18.10-2006Revision of ANSI/ASME B18.10-1982(R2005)Copyrighted 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.ASME B18.10-2006Revision of ANSI/ASME B18.10-1982(R2005)Track Boltsand NutsAN AMERICAN NATIONAL STANDARDThree Park Avenue New York,NY 10016Copyrighted 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.Date of Issuance:August 14,2006This 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 thisStandard.Interpretations are published on the ASME website under the Committee Pages athttp:/www.asme.org/codes/as they are issued.ASME is the registered trademark of The American Society of Mechanical Engineers.This code or standard was developed under procedures accredited as meeting the criteria for American NationalStandards.The Standards Committee that approved the code or standard was balanced to assure that individuals fromcompetent and concerned interests have had an opportunity to participate.The proposed code or standard was madeavailableforpublicreviewandcommentthatprovidesanopportunityforadditionalpublicinputfromindustry,academia,regulatory agencies,and the public-at-large.ASME does not“approve,”“rate,”or“endorse”any item,construction,proprietary device,or activity.ASME does not take any position with respect to the validity of any patent rights asserted in connection with anyitems mentioned in this document,and does not undertake to insure anyone utilizing a standard against liability forinfringement of any applicable letters patent,nor assume any such liability.Users of a code or standard are expresslyadvised that determination of the validity of any such patent rights,and the risk of infringement of such rights,isentirely their own responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not to be interpreted asgovernment or industry endorsement of this code or standard.ASME accepts responsibility for only those interpretations of this document issued in accordance with the establishedASME procedures and policies,which precludes the issuance of interpretations by individuals.No part of this document may be reproduced 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 2006 byTHE AMERICAN SOCIETY OF MECHANICAL ENGINEERSAll rights reservedPrinted in U.S.A.Copyrighted 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.CONTENTSForeword.ivCommittee Roster.viCorrespondence With the B18 Committee.vii1Introduction.12General Data.1Tables1Oval Neck Track Bolts.32Elliptic Neck Track Bolts.43Track Bolt Nuts.54Track Bolt Inspection Levels.55Track Nut Inspection Levels.5Nonmandatory AppendicesAOval Neck Track Bolts.6BElliptic Neck Track Bolts.7CTrack Bolt Nuts.8iiiCopyrighted 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.FOREWORDSectional Committee B18 on Dimensional Standardization of Bolts,Nuts,Rivets,Screws,andSimilar Fasteners was organized in March 1922,under the procedure of the American StandardsAssociation with the Society of Automotive Engineers and The American Society of MechanicalEngineers as joint sponsors.Following the organization of the Sectional Committee,subcommittees were appointed tofacilitate development of standards for the several types of bolts and nuts within the scope ofits activity.Subcommittee No.4 on Track Bolts and Nuts was organized in March 1923.With thecooperation ofthe Rail Committeeof theAmerican Railway EngineeringAssociation,EngineeringDivision of the American Railway Association,a study was made first of the various types oftrack bolts in use in the United States.In March 1924,two series of proposed standard dimensionsfor track bolt heads were developed conforming to that practice.This activity finally resulted inthe approval and issuance of an American Standard known as B18d in November 1930.Following its reorganization,the Sectional Committee in February 1947 decided that a furtherstudy should be made of the existing standards.Some types and sizes were no longer requirednor specified by users.Furthermore,manufacturers presented data on the multiplicity of designsand dim