ASME B18.2.3.7M-1979 Metric heavy hex structural bolts
|
ID： |
E747389E4A104F9695001212F3CB3045 |
|
文件大小(MB)： |
0.56 |
|
页数： |
19 |
|
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）：
AStlE Bia.2.3-7H 71 SB OPSlbVO 00H31N2 0 ,AMERICAN NATIONAL STANDARD,Metric Heavy Hex Structural Bolts,ANSI B18.2.3.7M - 1979 Government Key Words:,Bolt, Structural, Heavy Hex —,Metric,SECRETARIAT,SOCIETY OF AUTOMOTIVE ENGINEERS,THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS,PUBLISHED BY,THE AMERICAN SOCIETY O F MECHANICAL ENGINEERS,United Engineering Center 345 East 47th Street New York, N.Y. 10017,ASME mwroMal -,Fttw*。by IXS Sdw'XM Mtb,ASME Bia.2.3-7M ■ 07551.70 OOM3LM3 5 ,ANSI B18.2.3.7M-79,26 APRIL 1979,ACCEPTANCE NOTICE,This nongovernment document was adopted on 26 April 1979 and is approved for use by the DoD,and Federal Agencies. Metric heavy hex structural bolts shall conform to this document and Appendix,III, which cstabbshes standard items for Government application. Appendix JH. Table 5 shall be used for,item selection in accordance with the part numbering system and size information contained therein. The,indicated industry group has furnished the clearances required by existing regulations. Copies of the document,arc stocked by DoD Single Stock Point, Naval Publications and Forms Center, Philadelphia, PA,19120, for issue to DoD activities and Federal Agencies only. Contractors and industry groups must obtain,copies directly from:,The American Society of Mechanical Engineers,United Engineering Center, 345 E. 47th Street,New York, NY 10017 or,The American National Standards Institute,1430 Broadway, New York, NY 10018,Title of Document:,ANSI Document No.:,Date of Specific Issue Adopted:,Releasing Industry Group:,Custodians:,Army - AR,Navy — AS,Air Force — 99,Review Activities：,Army - AV, Ml, ER,Navy — MC,DLA 一 IS,NSA - NS,Civil Agencies：,GSA-FSS,Bolt, Structural. Heavy Hex - Metric,ANSI B18.2.3.7M-1979,26 April 1979,The American Society of Mechanical Engineers,Military Coordinating Activity,Army - AR,(Project 5306-0622),User Activities:,Army — ME, AT,Navy — SH,NOTICE: When reaffirmation, amendment, revision, or cancellation of this standard is initially proposed,the industry group responsible for this standard shall inform the Military Coordinating Activity of the,proposed action and request their participation. ---------------,FSC 5306],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.,Date of Issuance: August 31, 1979,Copydflht.l979 by,THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS,All Rights Reserved,Printed in U.S.A.,Cnpy>i0hi AWE,ASME Blfl.e.3.7H 7弓 ■ 0755L70 00M31HM M,FOREWORD,American National Standards Committee BI8 for (he standardization of bolts, screws, nuts, rivets and,similar fasteners was organized in March 1922, as Sectional Committee B18 under the aegis of tlie American,Engineering Standards Committee (later the American Standards Association, then the United States of,American 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 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,eight differcm hex head screw and bolt products. Actual drafting was postponed until 1SO/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 B18 affirmed the TC2 decisions al a,meeting on June 29, 1977 and drafting of this standard was started.,In February 1978, Committee B18 established a cooperative program with (he Department of Defense,to draft American National Standards for metric fasteners in such a way (hat (hey could be used directly,by the Governmenl for procurement purposes. The Department of Defense requested that each of the ciglu,products be covered in separate standards, and Subcommittee 2 accepted ihis approach at its meeting on,June 27, 1978.,This standard was 叩proved by letter ballot of Committee B18 on September 15, 1978, and was subsequently,approved by the secretariat and submitted to the American National Standards Institute for,designation as an American National Standard. This was granted on April 26,1979.,ASHE 016. 5 . 3 . ?f1 7cl 丒 07S5L70 00M……
……