QC/T 355-2023 English PDF
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QC/T 355: Historical versions
| Standard ID | USD | BUY PDF | Delivery | Standard Title (Description) | Status |
| QC/T 355-2023 | 245 | Add to Cart | Auto, 9 seconds. | Wheel nuts with conical seat | Valid |
| QC/T 355-1999 | 239 | Add to Cart | 3 days | (Car wheel nut cone nut) | Obsolete |
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QC/T 355-2023: Wheel nuts with conical seat
---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/QCT355-2023QC AUTOMOTIVE INDUSTRY STANDARD ICS 43.040 CCS T 33 Replacing QC/T 355-1999 Wheel Nuts with Conical Seat Issued on. DECEMBER 20, 2023 Implemented on. JULY 1, 2024 Issued by. Ministry of Industry and Information Technology of the People’s Republic of China
Table of Contents
Foreword... 7 1 Scope... 8 2 Normative References... 8 3 Terms and Definitions... 8 4 Type and Size... 9 5 Technical Conditions... 9 6 Product Number... 10Foreword
This Document was drafted as per the rules specified in GB/T 1.1-2020 Directives for Standardization – Part 1.Rules for the Structure and Drafting of Standardizing Documents. This Document replaced QC/T 355-1999 Automobile Wheel Nut - Cone Nut. Compared with QC/T 355-1999, the major technical changes of this Document are as follows. --- Raise the tolerance grade of the product from B to A (see Table 2 of this Edition); --- Cancel the specification of M10 × l.25 product (see Table 1 of this Edition); --- Add the specification of M20 × 1.5 product (see Table 1 of this Edition); --- Modify the structure and size of the product (see Figure 1, Table 1 of this Edition); --- Modify the category of surface treatment (see Table 2 of this Edition); --- Cancel the left-hand thread and its rotation direction mark of the product. This Document was proposed by and under the jurisdiction of National Technical Committee of Auto Standardization (SAC/TC 114). Drafting organizations of this Document. Zhejiang Jieneng Auto Parts Co., Ltd.; Sichuan Aerospace Shiyuan Technology Co., Ltd.; Anhui Jianghuai Automobile Group Co., Ltd.; Hangzhou Yunqi Intelligent Vehicle Innovation Center; BAIC Group Off-Road Vehicle Co., Ltd.; Hangzhou Shibao Auto Steering Gear Co., Ltd.; Zhejiang University of Technology; and Zhejiang Newgonow Automobile Co., Ltd. Chief drafting staffs of this Document. Guo Fushun, Luo Hong, Wei Xiaohua, Liu Zhihui, Luan Jianxin, Zhu Shengfeng, Yin Yuming, and Zhao Yun. The historical editions replaced by this Document are as follows. --- QC/T 355-1999; --- It is first-time revised hereby. Wheel Nuts with Conical Seat1 Scope
This Document specifies the type, size, technical conditions and number of wheel nuts with conical seat for automotive with thread specifications of M12 × 1.5 to M20 × 1.5 and mechanical property grades 8 and 10. This Document applies to wheel nuts with conical seat for automotive.2 Normative References
The provisions in following documents become the essential provisions of this Document through reference in this Document. For the dated documents, only the versions with the dates indicated are applicable to this Document; for the undated documents, only the latest version (including all the amendments) is applicable to this Document. GB/T 90.1 Fasteners – Acceptance inspection GB/T 90.2 Fasteners – Marking and packaging GB/T 196 General purpose metric screw threads - Basic dimensions GB/T 197 General purpose metric screw threads – Tolerances GB/T 3098.2 Mechanical properties of fasteners - Nuts GB/T 3103.1 Tolerances for fasteners - Bolts, screws and nuts GB/T 5779.2 Fasteners - Surface discontinuities – Nuts QC/T 326 Coding rules for automotive standardized parts QC/T 625 Metallic coatings and conversion coatings for automobile3 Terms and Definitions
For the purposes of this Document, no terms and definitions are necessary to be given.4 Type and Size
The type and size of wheel nuts with conical seat are shown in Figure 1 and Table 1.5 Technical Conditions
The technical conditions are shown in Table 2.6 Product Number
The product number of wheel nuts with conical seat shall be implemented according to QC/T 326. ......Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
