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本文(GMW GMW3284-2011 Prevailing Torque Type All-Metal Hexagon Nuts Style 2 Product Grade A English Issue 4《A等级常规扭矩型全金属六角螺母第2类型产品 第4次出版(英文版本)》.pdf)为本站会员(lawfemale396)主动上传,麦多课文库仅提供信息存储空间,仅对用户上传内容的表现方式做保护处理,对上载内容本身不做任何修改或编辑。 若此文所含内容侵犯了您的版权或隐私,请立即通知麦多课文库(发送邮件至master@mydoc123.com或直接QQ联系客服),我们立即给予删除!

GMW GMW3284-2011 Prevailing Torque Type All-Metal Hexagon Nuts Style 2 Product Grade A English Issue 4《A等级常规扭矩型全金属六角螺母第2类型产品 第4次出版(英文版本)》.pdf

1、 WORLDWIDE ENGINEERING STANDARDS General Specification GMW3284 Prevailing Torque Type All-Metal Hexagon Nuts Style 2 Product Grade A Copyright 2011 General Motors Company All Rights Reserved October 2011 Originating Department: North American Engineering Standards Page 1 of 4 1 Introduction 1.1 Scop

2、e. This standard gives specifications for prevailing torque type all-metal hexagon nuts with thread diameters from M5 to M12. Basis for this standard is ISO 7042. See Figure 1. 1.2 Designation. GMW3284. 2 References Note: Only the latest approved standards are applicable unless otherwise specified.

3、2.1 External Standards/Specifications. ISO 724 ISO 4759-1 ISO 898-2 ISO 6157-2 ISO 965-1 ISO 7042 ISO 1502 ISO/TS 16949 ISO 2320 2.2 GM Standards/Specifications. GMW3059 3 Requirements Figure 1: Hexagon Lock Nut, All-Metal Provided by IHSNot for ResaleNo reproduction or networking permitted without

4、license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW3284 Copyright 2011 General Motors Company All Rights Reserved October 2011 Page 2 of 4 3.1 Dimensions. See Figure 2. Figure 2: Dimension Illustration Table 1: Dimensions Diameter M5 M6 M8 M10 M12 P Pitch 0.8 1 1.25 1.5 1.75 da Maximum 5.75

5、6.75 8.75 10.75 13 Minimum 5 6 8 10 12 dw Minimum 6.88 8.88 11.63 13.63 16.63 e Minimum 8.79 11.05 14.38 16.64 20.03 h Maximum 5.1 6.0 8 10 12 Minimum 4.8 5.4 7.14 8.94 11.57 mw Minimum 3.52 3.92 5.15 6.43 8.3 s Maximum 8 10 13 15 18 Minimum 7.78 9.78 12.73 14.73 17.73 Property Class 8 8 8 10 10 Not

6、e 1: Prevailing torque element, shape toplock or Stover. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW3284 Copyright 2011 General Motors Company All Rights Reserved October 2011 Page 3 of 4 3.2 Material. Steel

7、, ISO 2320. See Table 1 for property class for each nut diameter. 3.3 Surface Treatment. As specified on the detail drawing. 3.4 Thread. ISO 724, ISO 965-1. Thread tolerance recommended 6G before surface treatment. After surface treatment, the thread shall be gaged according to ISO 1502 with a GO-ga

8、ge of tolerance H. 3.5 Prevailing Torque. ISO 2320. 3.6 Tolerances. Product Grade A, ISO 4759-1. 3.7 Surface Discontinuities. ISO 6157-2. 3.9 Proof Load Requirements. According to ISO 898-2. 3.9 Acceptability. ISO/TS 16949, GM Production Part Approval Process (PPAP). 4 Rules and Regulations 4.1 Lega

9、l Regulations. All materials must satisfy applicable laws, rules, regulations and recommendations valid in the country of usage. 4.2 Language. In the event of conflict between the English and domestic language, the English language shall take precedence. 4.3 Inspection and Rejection. Samples of comp

10、onents or materials released to a GM general specification shall be tested for conformity with the requirements of this general specification and approved by the responsible Engineering department prior to commencement of delivery of bulk supplies. A new approval must be received for any changes, e.

11、g., properties, manufacturing process, location of manufacture, etc. If not otherwise agreed, all testing and documentation normally required for initial release must be completed. It is the responsibility of the supplier to inform the customer in a timely manner, without solicitation, and to includ

12、e documentation of all modifications of materials and/or processes and to apply for a new release. If not otherwise agreed, all release tests shall be repeated and documented by the supplier prior to commencement of delivery of non-conforming bulk supplies. In individual cases, a shorter test can be

13、 agreed to between the responsible Engineering department and the supplier. 4.4 Initial Source Approval. Not applicable 4.5 All materials supplied to this standard must comply with the requirements of GMW3059, Restricted and Reportable Substances for Parts. 5 Notes 5.1 Glossary. Not applicable. 5.2

14、Acronyms, Abbreviations, and Symbols. PPAP Production Part Approval Process 6 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: GMW3284 7 Release and Revisions This standard was originated in May 1999. It was first approved by Fasteners Engineering in Fe

15、bruary 2000. It was first published in June 2000. Issue Publication Date Description (Organization) 1 JUN 2000 Initial publication. 2 JUN 2001 Editorial revision. (GMNA) 3 MAY 2005 Reformatted 3.3. (Fasteners Group) Provided by IHSNot for ResaleNo reproduction or networking permitted without license

16、 from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW3284 Copyright 2011 General Motors Company All Rights Reserved October 2011 Page 4 of 4 Issue Publication Date Description (Organization) 4 OCT 2011 Five year refresh. Removed part numbers and finish from the spec, revised M10 WAF from 16 mm to 15 mm. (Fasteners Global Council) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-

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