ASME B18.2.4.2M-1979 Metric hex nuts style 2
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ID： |
59D56E3F2F604FD3AD1BD0FA493DAE93 |
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文件大小(MB)： |
0.38 |
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页数： |
14 |
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文件格式： |
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日期： |
2008-4-6 |
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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）：
vashe Bia.e.H.en hi ovs^bTo oaHaeib 3,0-07”,AMERICAN NATIONAL STANDARD,Metric Hex Nuts, Style 2,ANSI B18.2.4.2M -1979 Government Key Words:,Nut, Plain, Hex, Style 2 -,Metric,SECRETARIAT,SOCIETY OF AUTOMOTIVE ENGINEERS,THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS,PUBLISHED DY,THE AMERICAN SOCIETY O F M E C H A,United Engineering Center 345 East 47th Street,N ICAL ENGINEERS,New York, N.Y. 10017,ashe B18.2.M.an vn , otshlvo 0043217 s,Date of Issuance： April 30,1980,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.,Copyright . 1980 by,THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS,All Rights Reserved,Printed in U.S.A.,Cc<>yi?* ASME IrlBniaSwwl----------- -、,Prcwdofl by HS uOt hc?ftsn AS*.*E ',ASHE Bia.a.M.EH 7cl EH OVSTbTO 0043218 ? ■,FOREWORD,American National Standards Committee B18 for the standardization of bolts, screws, nuts, rivets and,similar fasteners was organized in March 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.,Subcommitee 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 Bl8 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.,At a meeting on September 22, 1976, Subcommittee 2 organized the contents of a standard covering six,different styles of hex nuts. Actual drafting was postponed until ISO/TC2 could reach final decisions relating,to basic dimensions and characteristics of hex bolts, screws and nuts. At ISO/TC2 meetings held in April 1977,final actions were taken, Committee Bl 8 affirmed the TC2 decisions at a meeting on June 29,1977, and drafting,of this standard was started.,n February 1978, Committee B18 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 six nut 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 B18 on July 2,1979, and was subsequently approved,by the secretariats and submitted to the American National Standards Institute for designation as an,American National Standard. This was granted on December 6,1979.,ASNE BL8?2丒q丒an 74 K D7S5b70 00H3215 —,AMERICAN NATIONAL STANDARDS COMMITTEE B18,STANDARDIZATION OF BOLTS, NUTS, RIVETS, SCREWS,WASHERS AND SIMILAR FASTENERS,OFFICERS,R. P. Trowbridge, Chairmen,J. B. Levy, Vice Choirman,H. G. MtMnchinger, Vice Chairman,Richard McGinnis, Secntary,COMMITTEE PERSONNEL,AMERICAN CHAIN ASSOCIATION,L. ￡. Hampel, Moline Malleable bon Company, St. Charles, lUinois,AMERICAN HARDWARE MANUFACTURERS ASSOCIATION,Donald Wanek, Wrought Washer Manufacturing Company, Milwaukee, Wisconsin,AMERICAN INSTITUTE OF INDUSTRIAL ENGINEERS,R. T. Kelly, Hitchcock Publishing Company, Wheaton, Illinois,AMERICAN SOCIETY OF AGRICULTURAL ENGINEERS,E. R. Friesth, Deere & Company, Moline, Illinois,AMERICAN SOCIETY OF MECHANICAL ENGINEERS. THE,A. R. Machell, Jr., Xerox Corporation, Rochester, New York,F. P. Tisch, Desert Hot Springs, California,R. P. Trowbridge, GM Technical Center, Warren, Michigan,C. R. Adams, Alternate, Newport News Shipbuilding & Dry Dock Co., Newport News, Virginia,K. E. McCullough, Alternate, SPS Technologies, Inc., Jenkintown, Pennsylvania,ANTI-FRICTION BEARING MANUFACTURERS ASSOCIATION,W. J. Derncr, FMC Corporation. Indianapolis, Indiana,ENGINE MANUFACTURERS ASSOCIATION,K. F. Naylor, Cummins Engine Company, Columbus, Indiana,FARM & INDUSTRIAL EQUIPMENT INSTITUTE,￡. R. Friesth, Deere & Company, Motine, Illinois,HAND TOOLS INSTITUTE,C. B. Ingersoll, J. H, WiUiams Company, Buffalo, New York,INDUSTRIAL FASTENERS INSTITUTE,/?. B. Belford, Industrial Fasteners Institute. Cleveland, Ohio,A. R. Breed. The Lam son & Sessions Company, Cicvdand, Ohio,D. A. Garrison, Russell, Burdsall & Ward Inc., Rock Falls, Illinois,A. W. Groover, Bethlehem Steel Company, Lebanon, Pennsylvania,E. J. Heldmann, Holo-Krome……
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