-8-2_R2005_E2000.pdf

ASME B18.8.2-2000(Revision of ANSI/ASME B18.8.2-1995)TAPER PINS,DOWEL PINS,STRAIGHT PINS,GROOVEDPINS,AND SPRING PINS(INCH SERIES)A N A M E R I C A N N A T I O N A LS T A N D A R DASME B18.8.2-2000(Revision of ANSI/ASME B18.8.2-1995)TAPER PINS,DOWEL PINS,STRAIGHT PINS,GROOVEDPINS,AND SPRING PINS(INCH SERIES)A N A M E R I C A N N A T I O N A LS T A N D A R DCopyrighted 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.REAFFIRMED 2005FOR CURRENT COMMITTEE PERSONNELPLEASE E-MAIL CSasme.orgAN AMERICAN NA TIONALST ANDARDTAPER PINS,DOWEL PINS,STRAIGHT PINS,GROOVEDPINS,AND SPRING PINS(INCH SERIES)ASME B18.8.2-2000(Revision of ANSI/ASME B18.8.2-1995)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.Date of Issuance:October 31,2001The 2001 edition of this Standard is being revised with an automatic addendasubscription service.The use of an addenda allows revisions made inresponse to public review comments or committee actions to be publishedas necessary.The next edition of this Standard is scheduled for publicationin 2006.ASME will issue written replies to inquiries concerning interpretation oftechnical aspects of this Standard.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 forAmerican National Standards.The Standards Committee that approved the code or standardwas balanced to assure that individuals from competent and concerned interests have had anopportunity to participate.The proposed code or standard was made available for public reviewand comment that provides an opportunity for additional public input from industry,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 inconnection withany itemsmentioned inthis document,and doesnot undertaketo insureanyoneutilizingastandardagainstliabilityforinfringementofanyapplicableLettersPatent,norassumesany such liability.Users of a code or standard are expressly advised that determination of thevalidity of any such patent rights,and the risk of infringement of such rights,is entirely theirown responsibility.Participation by federal agency representative(s)or person(s)affiliated with industry is not tobe interpreted as government or industry endorsement of this code or standard.ASMEacceptsresponsibilityforonlythoseinterpretationsissuedinaccordancewithgoverningASME 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 2001 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.FOREWORDThe need for a standard covering machine pins was recognized by industry as far backas March,1926,when the Sectional Committee on the Standardization of Machine Pinswas organized under the procedure of the American Standards Association(later the UnitedStates of America Standards Institute and as of October 6,1969,the American NationalStandards Institute,Inc.),with the Society of Automotive Engineers and the AmericanSociety of Mechanical Engineers as joint sponsors.For the next year or two an effort was made via correspondence to develop a basis onwhich a standard for straight,taper,split,and dowel pins might be established.Thiscorrespondence exposed a distinct difference of opinion on the part of the manufacturersand users of taper machine pins,which seemed to discourage the members of the committeefrom attempting standardization on any of the types of pins within its scope.The sponsororganization made frequent efforts to revive this project through letters and the distributionof technical literature on this general subject,without avail.In December,1941,during its periodic review of Society-sponsored standards,the ASMEStandardization Committee decided that reviving the project was unlikely and voted(subjectto acceptance by the sponsors)to suggest to the ASA the transfer of this project to SectionalCommittee B5 on the Standardization of Small Tools and Machine Tool Elements.Thesponsors agreed and on July 7,1942,the ASA sanctioned this action and Sectional CommitteeB43 was discharg