ASME-B18.2.4.6M-2010-米制重型六角螺母.doc

ASME BM-2010Revision of ANSI BM-1979 (R2003)Metric Heavy Hex Nuts米制重型六角螺母A N A M E R I C A N N A T I O N A L S T A N D A R DASME BM-2010Revision of ANSI BM-1979 (R2003)Metric Heavy Hex Nuts米制重型六角螺母AN AMERICAN NA TIONAL S T AND ARD Date of Issuance: March 31,2010发行日期：2010年3月31日This Standard will be revised when the Society approves the issuance of a new edition. There will be no addenda issued to this edition.当社会认可发行新版时，该标准将被修订。本版本将没有附录。ASME issues written replies to inquiries concerning interpretations of technical aspects of this Standard. Periodically certain actions of the ASME B18 Committee may be published as Cases. Cases and interpretations are published on the ASME Web site under the Committee Pages at as they are issued.ASME就有关本标准技术方面的解释提出书面答复。定期发布ASME B18委员会的某些行动作为案例。案例和解释是在ASME网站上发布的，委员会的网页在HTTP:/CtoSal.asMe.Org发布。ASME is the registered trademark of The American Society of Mechanical Engineers.ASME是美国机械工程师学会的注册商标。This code or standard was developed under procedures accredited as 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 provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large.此代码或标准是在符合美国国家标准标准的程序下开发的。经批准的代码或标准的标准委员会平衡，以确保来自主管和关心利益的个人有机会参与。拟议的法规或标准可供公众审查和评论，为行业、学术界、监管机构和公众提供更多的公共投入提供了机会。ASME does not “approve,” “rate,” or “endorse” any item, construction, proprietary device, or activity.ASME不“批准”、“费率”或“背书”任何项目、结构、专有设备或活动。ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable letters patent, nor assumes 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.ASME对任何与本文件中提及的任何条款有关的专利权的效力不采取任何立场，不承担确保任何人使用违反任何适用的专利权的侵权责任的标准，也不承担任何此类责任。责任。代码或标准的使用者明确地建议，确定任何此类专利的有效性，以及侵犯这些权利的风险，完全是他们自己的责任。Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as government or industry endorsement of this code or standard.联邦机构代表或与工业有关的人的参与不应被解释为政府或行业对这一法规或标准的认可。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.ASME只负责根据已建立的ASME程序和政策发布的对这些文件的解释，从而排除了个人发布解释的责任。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 Engineers Three Park Avenue, New York, NY 10016-5990CONTENTS 内容Foreword 前言ivCommittee Roster 委员会名册vCorrespondence With the B18 Committee 与B18委员会的函电vii1 Scope 范围12 Comparison With ISO Standards 与ISO标准的比较13 Referenced Standards 参考标准14 Terminology 术语15 Dimensions 尺寸16 Width Across Flats 横跨宽度17 Thickness 厚度18 Tops and Bearing Surfaces 顶部和轴承表面19 Corner Fill 角填充210 True Position of Hexagon to the Tapped Hole 六角螺纹孔的真实位置211 Countersink 埋头孔212 Threads 螺纹213 Material and Mechanical Properties 材料力学性能214 Finish 完成215 Identification Symbols 识别符号216 Inspection and Quality Assurance 检验与质量保证217 Designation 任命218 Workmanship 做工2Table 表1Dimensions of Heavy Hex Nuts 重型六角螺母的尺寸3Nonmandatory Appendix 非强制性附录AGeneral Dimension Requirements From ISO 4775 ISO 4775的通用尺寸要求5viiFOREWORD 前言The B18 American National Standards Committee 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. B18 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, the B18 Committee authorized preparation of a series of standards for metric fasteners. Subcommittee 2 was assigned responsibility for developing stan- dards 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. The B18 Committee affirmed the TC2 decisions at a metting on June 29, 1977, and drafting of this Standard was started.In February 1978, the B18 Committee 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 the B18 Committee 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. In March 2007, B18 Subcommittee 2 decided to start a major revision of the Standard. The scope was revised to include the range of nuts from M12 through M100, dimensional differences were coordinated to the extent possible with ISO 4775, the referenced standards were specifically identified, the terminology was referenced specifically to ASME B18.12, symbols specifying geo- metric characteristics were made in accordance with ASME Y14.5, stainless steel and nonferrous nuts were conformed to the requirements of ASTM F 836M, stainless steel and nonferrous nuts were marked to identify the property class and manufacturer in accordance with requirements specified in ASTM F 836M or ASTM F 467M, acceptability of nuts was determined in accordance with ASME B18.18.2, a reference was made for the recommended B18 (PIN) for metric heavy hex nuts and was included in ASME B18.24, a workmanship reference to ASTM F 812/F 812M was added, Table 1 was enhanced to include symbols specifying geometric characteristics per ASME Y14.5, the table in Nonmandatory Appendix A was added to assist in determining the dimensional differences between ASME BM and ISO 4775, and Appendix 1 and Table 2were removed.This Standard was approved by the American National Standards Institute on February 22, 2010.B18美国标准化螺栓、螺钉、螺母、铆钉和类似紧固件国家标准委员会于1922年3月组织为美国工程标准委员会（美国标准协会之后）联合国B18委员会。美国国家标准协会，1969年10月6日，美国国家标准协会，与汽车工程师协会和美国机械工程师学会联合主办。B18小组委员会2随后成立，并负责涵盖扳手头螺栓和螺母标准的技术内容。在1974年12月4日的会议上，B18委员会授权编制一系列米制紧固件标准。小组委员会2被指派负责开发公制六角螺栓、螺钉和螺母的标准杆。在1976年9月22日的一次会议上，小组委员会2组织了一个涵盖六种不同类型的六角螺母的标准内容。实际的绘图推迟到ISO/TC2能够达到与六角螺栓、螺钉和螺母的基本尺寸和特性有关的最终决定为止。在1977年4月召开的ISO/TC2会议上，采取了最后行动。B18委员会在1977年6月29日的一次会议上肯定了TC2的决定，并开始起草这个标准。1978年2月，B18委员会与国防部建立了一项合作计划，起草美国国家标准紧固件标准，使其能够直接供政府采购使用。国防部要求六个坚果产品中的每一个都以不同的标准覆盖，小组委员会2在1978年6月27日的会议上接受了这一方法。该标准于1979年7月2日通过B18委员会的信函投票通过，随后被秘书处批准并提交给美国国家标准研究所指定为美国国家标准。这是1979年12月6日批准的。2007年3月，B18小组委员会2决定开始对该标准进行重大修订。修改范围包括从M12到M100的坚果范围，尺寸差异与ISO 4775尽可能协调，参考的标准被明确地标识，术语被专门指定给ASME B18.12，指定地理度量的符号。根据ASME Y145的特点，不锈钢和有色金属螺母符合ASTM F 836M的要求，根据ASTM F 836M中规定的要求，标记不锈钢和有色螺母，以鉴定性能等级和制造商。ASTM F 467米，根据ASME B18.18.2确定坚果的可接受性，参考推荐的B18（PIN）用于度量重型六角螺母，并被包括在ASME B18.24中，添加了ASTM F 812 /F 812M的工艺参考，表1被增强以包括符号指定。在ASME Y145的NG几何特征中，添加了非强制性附录A中的表，以帮助确定ASME BM和ISO 4775、附录1和表2之间的尺寸差异。被移除。该标准于2010年2月22日由美国国家标准协会批准。ASME B18 COMMITTEEStandardization of Bolts, Nuts, Rivets, Screws,Washers, and Similar FastenersASME B18委员会螺栓、螺母、铆钉、螺钉的标准化垫圈和类似的紧固件(The following is the roster of the Committee at the time of approval of this Standard.)（以下是本标准批准时的委员会名册）STANDARDS COMMITTEE OFFICERSJ. Greenslade, ChairD. S. George, Vice ChairR. D. Strong, Vice ChairC. J. Gomez, SecretaryV. Cartina, ConsultantD. A. Clever, ConsultantA. P. Cockman, Ford Motor Co.C. A. Dugal, TSP, Inc.STANDARDS COMMITTEE PERSONNELJ. F. Koehl, Contributing Member, Spirol International Corp.W. H. Kopke, ConsultantW. J. Lutkus, Emhart TeknologiesD. A. McCrindle, Canadian Fasteners InstituteJ. S. Foote, Contributing Member, Trade Association Management, Inc.D. S. George, ND IndustriesC. J. Gomez, The American Society of Mechanical EngineersJ. Greenslade, Industrial Fasteners InstituteJ. J. Grey, Contributing Member, Fastener Consulting Services, Inc.B. Hasiuk, Contributing Member, Defense Supply Center PhiladelphiaA. Herskovitz, ConsultantJ. Hubbard, Leland-Powell Fastener, Inc.J. Jennings, Contributing Member, Naval Surface Warfare CenterW. H. King, Porteous Fasteners Co.M. D. Prasad, Contributing Member, Global M&F SolutionsS. Savoji, ITW MedalistW. Schevey, Contributing Member, BGM Fastener Co., Inc.Q. M. Smith III, Oregon Department of TransportationW. R. Stevens, RamcoR. D. Strong, General Motors Corp.S. W. Vass, ConsultantC. B. Wackrow, Contributing Member, MNP Corp.W. K. Wilcox, ConsultantC. B. Williamson, Fastenal Co.C. J. Wilson, ConsultantR. B. Wright, Contributing Member, Wright Tool Co.J. G. Zeratsky, National Rivet and Manufacturing Co.W. R. Stevens, Chair, RamcoV. Cartina, Vice Chair, ConsultantA. P. Cockman, Ford Motor Co.B. A. Dusina, Federal Screw WorksM. A. Elmi, CaterpillarD. S. George, ND IndustriesJ. Greenslade, Industrial Fasteners InstituteJ. J. Grey, Fastener Consulting Services, Inc.SUBCOMMITTEE 16 NUTSJ. Jennings, Naval Surface Warfare CenterJ. F. McCarrick, Defense Supply Center PhiladelphiaW. L. Sakowski, Account Managers, LLCR. M. Serabin, Freundlich Supply Co.D. F. Sharp, GMS Structural EngineersD. J. Soscia, Electric Boat Corp.W. K. Wilcox, ConsultantC. B. Williamson, Fastenal Co.C. J. Wilson, ConsultantCORRESPONDENCE WITH THE B18 COMMITTEE与B18委员会的函电General. ASME Standards are developed and maintained with the intent to represent the consensus of concerned interests. As such, users of this Standard may interact with the Committee by requesting interpretations, proposing revisions, and attending Committee meetings. Corre- spondence should be addressed to:Secretary, B18 Standards CommitteeThe American Society of Mechanical Engineers Three Park AvenueNew York, NY 10016-5990/InquiryProposing Revisions. Revisions are made periodically to the Standard to incorporate changes that appear necessary or desirable, as demonstrated by the experience gained from the application of the Standard. Approved revisions will be published periodically.The Committee welcomes proposals for revisions to this Standard. Such proposals should be as specific as possible, citing the paragraph number(s), the proposed wording, and a detailed description of the reasons for the proposal, including any pertinent documentation.Proposing a Case. Cases may be issued for the purpose of providing alternative rules when justified, to permit early implementation of an approved revision when the need is urgent, or to provide rules not covered by existing provisions. Cases are effective immediately upon ASME approval and shall be posted on the ASME Committee Web page.Requests for Cases shall provide a Statement of Need and Background Information. The request should identify the standard, the paragraph, figure or table number(s), and be written as a Question and Reply in the same format as existing Cases. Requests for Cases should also indicate the applicable edition(s) of the standard to which the proposed Case applies.Interpretations. Upon request, the B18 Standards Committee will render an interpretation of any requirement of the Standard. Interpretations can only be rendered in response to a written request sent to the Secretary of the B18 Standards Committee.The request for an interpretation should be clear and unambiguous. It is further recommended that the inquirer submit his/her request in the following format:Subject:Cite the applicable paragraph number(s) and the topic of the inquiry.Edition:Cite the applicable edition of the Standard for which the interpretation is being requested.Question:Phrase the question as a request for an interpretation of a specific requirement suitable for general understanding and use, not as a request for an approval of a proprietary design or situation. The inquirer may also include any plans or drawings, which are necessary to explain the question; however, they should not contain proprietary names or information.Requests that are not in this format may be rewritten in the appropriate format by the Committee prior to being answered, which may inadvertently change the intent of the original request.ASME procedures provide for reconsideration of any interpretation when or if additional information that might affect an interpretation is available. Further, persons aggrieved by an interpretation may appeal to the cognizant ASME Committee or Subcommittee. ASME does not “approve,” “certify,” “rate,” or “endorse” any item, construction, proprietary device, or activity. Attending Committee Meetings. The B18 Standards Committee regularly holds meetings that are open to the public. Persons wishing to attend any meeting should contact the Secretary ofthe B18 Standards Committee.ASME BM-2010METRIC HEAVY HEX NUTS 米制重型六角螺母1 SCOPE 范围(a) This Standard covers the complete general and dimensional data for metric heavy hex nuts M12 through M100 recognized as American National Standard.(b) The inclusion of dimensional data in this Standard is not intended to imply that all of the nut sizes in conjunction with various options described herein are stock items. Purchasers should consult with suppliers concerning lists of stock production heavy hex nuts.（a）本标准涵盖了被公认为美国国家标准的M100型重型六角螺母M12的完整的通用和尺寸数据。（b）在本标准中包含尺寸数据并不意味着所有的螺母尺寸与本文所描述的各种选项相结合是库存项目。购买者应与供应商就重型六角坚果的生产清单进行磋商。2 COMPARISON WITH ISO STANDARDS 与ISO标准的比较Heavy hex nuts in normal thread diameters M12 through M36 as covered in this Standard have been coordinated to the extent possible with ISO 4775 (see Appendix A for dimensional differences).标准螺纹所覆盖的普通螺纹直径M12至M36中的重型六角螺母已与ISO 4775尽可能协调（见尺寸差异的附录A）。3 REFERENCED STANDARDS 参考标准The following is a list of publications referenced in this Standard.ASME B1.13M, Metric Screw Threads: M ProfileASME B18.12, Glossary of Terms for Mechanical FastenersASME B18.18.2, Inspection and Quality Assurance for High-Volume Machine Assembly FastenersASME B18.24, Part Identifying Number (PIN) Code System Standard for B18 Fastener ProductsASME Y14.5-2009, Dimensioning and TolerancingPublisher: The American Society of Mechanical Engineers (ASME), Three Park Avenue, New York, NY 10016-5990; Order Department: 22 Law Drive, Box 2300, Fairfield, NJ 07007-2300 ()ASTM A 563M, Carbon and Alloy Steel Nuts MetricASTM F 467M, Nonferrous Nuts for General Use MetricASTM F 812/F 812M, Surface Discontinuities of Nuts, Inch and Metric FastenersASTM F 836M, Standard Specification for Style 1 Stain- less Steel Metric NutsASTM F 1941M, Electrodeposited Coatings on Threaded Fasteners MetricPublisher: The American Society for Testing and Materials (ASTM International), 100 Barr Harbor Drive, West Conshohocken, PA 19428 ()ISO 4775, Hexagon Nuts for High-Strength Structural Bolting with Large Width-Across-Flats Product Grade B Property Classes 8 and 10Publisher: International Organization for Standardization (ISO), 1, ch. de la Voie-Creuse, Case Postale 56, CH-1211, Geneve 20, Switzerland/Suisse ()以下是本标准中引用的出版物列表。ASME B1.13M，米制螺纹：M型线ASME B18.12机械紧固件术语汇编ASME B18.18.2，高容量机器装配紧固件的检验和质量保证ASME B18.24，B18紧固件产品零件识别号码（PIN）代码系统标准ASME Y145-2009尺寸标注和公差出版商：美国机械工程师学会（ASME），三帕克街，纽约，纽约10016-5990；订单部：22法律驱动器，框2300，费尔菲尔德，NJ07000 - 700（www. asM）ASTM A 563M，碳素钢和合金钢螺母米制通用有色金属螺母ASTM F 467米米制ASTM F 812F 812M，螺母和米制紧固件的表面不连续性ASTM MF 836M，1型无污染钢制米制螺母的标准规范ASTM M 1941M，螺纹紧固件上的电沉积涂层米制出版商：美国测试与材料协会（ASTM国际），100巴尔港驱动，西康绍霍肯，PA 19428（www. ASTM）ISO 4775，六角头螺母，用于高强度结构螺栓连接的大跨平面产品B级-性能等级8和10出版商：国际标准化组织（ISO），1，C.D.La VoeIe CREUSE，Case Postale 56，CH-1211，基因VE 20，瑞士/瑞士（www. ）4 TERMINOLOGY 术语For definitions of terms relating to fasteners or compo- nent features thereof used in this Standard, refer to ASME B18.12.有关本标准中使用的紧固件或组合件的术语定义，请参阅ASME B18.12。5 DIMENSIONS 尺寸(a) Unless otherwise stated, all dimensions in this Standard are in millimeters and apply before any coat- ing. When plating or coating is specified, the finished product dimensions shall be as agreed upon between supplier and purchaser.(b) Symbols specifying geometric characteristics are in accord with ASME Y14.5.（a）除非另有说明，本标准中的所有尺寸均为毫米，适用于任何涂层。当指定电镀或涂层时，成品尺寸应符合供应商和买方之间的约定。（b）指定几何特征的符号与ASME Y145一致。6 WIDTH ACROSS FLATS 横跨宽度(a) The width across flats shall be the distance, mea- sured perpendicular to t