ASME B18.2.3.1M-1999 metric hex cap screws
ID: |
3D0355C493AE4A349F826283A22F559E |
文件大小(MB): |
1.49 |
页数: |
29 |
文件格式: |
|
日期: |
2010-8-22 |
购买: |
文本摘录(文本识别可能有误,但文件阅览显示及打印正常,pdf文件可进行文字搜索定位):
COPYRIGHT American Society of Mechanical Engineers,Licensed by Information Handling Services,The American Society of,Mechanical Engineers,A N A M E R I C A N A T I O N A L S T A N D A R D,METRIC HEX,CAP SCREWS,ASME B 1 8 m L 3 m l M-I fill,[Revision 01 ANSI I1 8.2.3.1 M-1979 (RlNfl5)],COPYRIGHT American Society of Mechanical Engineers,Licensed by Information Handling Services,Date of Issuance: December 31, 1999,The 1998 edition of this Standard is being issued with an automatic addenda,subscription service. The use of an addenda allows revisions made in,response to public review comments or committee actions to be published,as necessary. The next edition of this Standard is scheduled for publication,in 2004.,ASME is the registered trademark of The American Society of Mechanical Engineers.,This code or standard was developed under procedures accrediteads meeting the criteria for,American National Standards. The Standards Committee that approved the code or standard,was balanced to assure that individuals from competent and concerned interests have had an,opportunity to participate. The proposed code or standard was made available for public review,and comment that provideasn 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 withr espect to the validity of any patent rights asserteidn,connection with any items mentioned in this document, and does not undertake to insure anyone,utilizing a standard against liability for infringemeonft any applicable letters patent, nor assume,any such liability. Users of a code or standard are expressly advised that determination of the,validity of any such patent rights, and the risk of infringement of such rights, is entirely their,own responsibility.,Participation by federal agency representativeb) or person(s) affiliated with industry is ntoot,be interpreted as government or industry endorsement of this code or standard.,ASME accepts responsibility for only those interpretations of this document issued in,accordance with the established ASME 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 permissiono f the publisher.,The American Society of Mechanical Engineers,Three Park Avenue, New York, NY 10016-5990,Copyright Q 1999 by,THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS,All Rights Reserved,Printed in U.S.A.,COPYRIGHT American Society of Mechanical Engineers,Licensed by Information Handling Services,FOREWORD,American National Standards Committee B 18 for the standardization of bolts, screws,nuts, rivets, and similar fasteners was organized in March of 1922, as Sectional Committee,B18 under the aegis of the American Engineering Standards Committee (later the American,Standards Association, then the United States of America Standards Institute and, as of,October 6 , 1969, the American National Standards Institute, Inc.), with the Society of,Automotive Engineers and the American Society of Mechanical Engineers as joint sponsors.,Subcommittee 2 was subsequently established and charged with the responsibility for technical,content of standards covering wrench head bolts and nuts.,At its meeting on December 4, 1974, Committee B18 authorized preparation of a series,of standards for metric fasteners. Subcommittee 2 was assigned responsibility for developing,standards for metric hex bolts, screws, and nuts. On September 22, 1976, Subcommittee 2,organized the contents of a standard covering eight different hex head screw and bolt,products. Actual drafting was postponed until ISO/TC2 could reach final decisions relating,to the basic dimensions and characteristics of hex bolts, screws, and nuts. At ISO/TC2,meetings held in April of 1977, final actions were taken. Committee B18 affirmed the TC2,decisions at a meeting on June 29, 1977, and drafting of this Standard was started.,Committee B 18, in February of 1978, established a cooperative program with the Department,of Defense to draft American National Standards for metric fasteners in such a way that,they could be used directly by the Government for procurement purposes. The Department,of Defense requested that each of the eight products be covered in separate standards, and,Subcommittee 2 accepted this approach at its meeting on June 27, 1978.,This Standard was approved by letter ballot of Committee B 18 on September 15, 1978,and was subsequently ……
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