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GB/T 4440-2022: Adjustable wrenches
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 4440-2022 | English | 289 |
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3 days [Need to translate]
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Adjustable wrenches
| Valid |
GB/T 4440-2022
|
| GB/T 4440-2008 | English | 359 |
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Adjustable wrenches
| Obsolete |
GB/T 4440-2008
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| GB/T 4440-1998 | English | 319 |
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3 days [Need to translate]
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Adjustable wrenches
| Obsolete |
GB/T 4440-1998
|
| GB 4440-1984 | English | 199 |
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2 days [Need to translate]
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Adjustable wrenches
| Obsolete |
GB 4440-1984
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Basic data | Standard ID | GB/T 4440-2022 (GB/T4440-2022) | | Description (Translated English) | Adjustable wrenches | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J47 | | Classification of International Standard | 25.140.30 | | Word Count Estimation | 13,144 | | Date of Issue | 2022-11-08 | | Date of Implementation | 2023-06-01 | | Older Standard (superseded by this standard) | GB/T 4440-2008 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 4440-2022 ImageGB/T 4440-2022: Adjustable wrenches---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Adjustable wrenches
ICS 25.140.30
CCSJ47
National Standards of People's Republic of China
Replacing GB/T 4440-2008
live wrench
Released on 2022-11-08
2023-06-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for Standardization Work Part 1.Structure and Drafting Rules for Standardization Documents"
drafting.
This document replaces GB/T 4440-2008 "Adjustable Wrench". Compared with GB/T 4440-2008, except for structural adjustment and editorial changes,
The main technical changes are as follows.
--- Added terms and definitions (see Chapter 3);
--- Increased product classification (see 4.2);
--- Changed the material requirements (see 5.1, 4.1 of the.2008 edition);
--- Added products with specifications of 750mm and 900mm and related dimensions (see 5.2);
--- Changed the torque requirements (see 5.4, 4.3 of the.2008 edition);
--- Changed the surface quality requirements (see 5.7.4, 4.6.4 of the.2008 edition)
--- Added test methods for materials (see 6.1);
---Changed the torque test method (see 6.4, 5.3 of the.2008 edition);
---Changed the small shoulder gap test method (see 6.5.2, 5.4.2 of the.2008 edition);
---Changed the test method of electroplating layer thickness in surface treatment (see 6.6, 5.5.1 of the.2008 edition);
--- Changed the inspection rules (see Chapter 7, Chapter 6 of the.2008 edition).
This document is modified to adopt ISO 6787.2018 "Adjustable wrenches for screw and nut assembly tools".
Compared with ISO 6787.2018, this document has more structural adjustments. Comparison list of structure number changes between two files
See Appendix A.
Compared with ISO 6787.2018, this document has more technical differences, and vertical single
Lines (|) are marked. See Appendix B for a list of these technical differences and their causes.
The following editorial changes have been made to this document.
--- Change the file name to "Live Wrench";
--- Removed references.
Please note that some contents of this document may refer to patents. The issuing agency of this document assumes no responsibility for identifying patents.
This document is proposed by China National Light Industry Council.
This document is under the jurisdiction of the National Hardware Products Standardization Technical Committee (SAC/TC174).
This document is drafted by. Weihai Liyu Industrial Co., Ltd., Hangzhou Great Star Technology Co., Ltd., Star Tools (Shanghai) Co., Ltd.
Division, Shanghai Tool Industry Research Institute, Zhangjiagang Zhongtianda Tools Co., Ltd., Wenling City Qinghai Lake Tools Co., Ltd., Ningbo Changcheng Seiko Industrial Co., Ltd.
Industry Co., Ltd., Zhejiang Yiyang Tool Manufacturing Co., Ltd., Hebei Zhongbo Explosion-Proof Tools Group Co., Ltd., Dimension Explosion-Proof Tools (Tianjin)
Group Co., Ltd., Cangzhou Dean Explosion-proof Special Tool Manufacturing Co., Ltd., Ningbo Deli Tools Co., Ltd., Zhejiang Bosi Bichuan Yinzhou Technology
Co., Ltd., Foshan Yingzhiyin Hardware Tools Manufacturing Co., Ltd., Jiande City Yuanfeng Tools Co., Ltd., Zhejiang Feiling Tools Co., Ltd., Zhao
Yuanshi Hongrun Machinery Manufacturing Co., Ltd., Jiangsu Hongbao Tools Co., Ltd., Zhejiang Sida Tools Co., Ltd., Ningbo Jufeng Tools Industry Co., Ltd.
Company, Nantong Jinhe Tools Co., Ltd., Jiangsu Weisheng Trading Co., Ltd., Nuoba Precision Machinery (Shanghai) Co., Ltd., Shanghai Fu Tools Co., Ltd.
Co., Ltd., Jinyi Industrial Co., Ltd.
The main drafters of this document. Yu Jinshan, Wang Weiyi, Xu Hong, Zhou Along, Zhou Lu, Pang Nianqun, Zhang Li, Wu Tianguo, Chen Lihai, Yang Chunwei,
Yang Dongjiang, Yang Jingwei, Fu Jinghong, Zhang Dagang, Fang Yongjiong, Lin Zhongwei, Liao Zhubiao, Zhang Xilin, Dong Peng, Wang Zhuming, Liu Zhiqing, Jiang Jianjun,
Zhu Jianping, Zhang Xin, Zeng Zhida, Ma Lichun, Jiang Zhenyu, Zhang Jun.
The release status of previous versions of this document and the documents it replaces are as follows.
--- First published as GB/T 4440-1998 in.1998, first revised in.2008;
--- This is the second revision.
live wrench
1 Scope
This document specifies the product classification and marking, requirements, test methods, inspection rules and signs, packaging, transportation and storage of adjustable wrenches.
This document applies to adjustable wrenches for turning bolts and nuts or other fasteners.
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document.
GB/T 230.1 Rockwell hardness test for metallic materials - Part 1.Test method (GB/T 230.1-2018, ISO 6508-1.
2016, MOD)
GB/T 699 High Quality Carbon Structural Steel
GB/T 2828.1 Count sampling inspection procedure Part 1.Batch-by-batch inspection sampling plan retrieved by acceptance quality limit (AQL)
(GB/T 2828.1-2012, ISO 2859-1.1999, IDT)
GB/T 4955 Metal coating coating thickness measurement - anodic dissolution coulometric method (GB/T 4955-2005, ISO 2177.
2003, IDT)
GB/T 5305 Packaging, marking, transportation and storage of hand tools
GB/T 6060.2 Surface roughness comparison samples Grinding, turning, boring, milling, inserting and planing surfaces (GB/T 6060.2-2006,
ISO 2632-1.1985, MOD)
GB/T 6462 Microscopic method for measuring the thickness of metal and oxide coatings (GB/T 6462-2005, ISO 1463.2003,
IDT)
3 Terms and Definitions
3.1
opening dimensionopeningdimension
By adjusting the worm, the movable wrench is moved to the maximum distance from the vertical surface of the wrench body, the size between the two vertical mouth surfaces.
Note. The unit is millimeter (mm).
3.2
Small shoulder clearance
The gap between the small shoulder plane of the movable wrench and the guide rail surface of the wrench body.
Note. The unit is millimeter (mm).
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