GB/T 16674.3-2023 English PDFUS$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 16674.3-2023: Hexagon bolts with flange - Small series - Product grade A with driving feature of product grade B Status: Valid
Basic dataStandard ID: GB/T 16674.3-2023 (GB/T16674.3-2023)Description (Translated English): Hexagon bolts with flange - Small series - Product grade A with driving feature of product grade B Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: J13 Classification of International Standard: 21.060.10 Word Count Estimation: 13,139 Date of Issue: 2023-05-23 Date of Implementation: 2023-12-01 Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration GB/T 16674.3-2023: Hexagon bolts with flange - Small series - Product grade A with driving feature of product grade B---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. ICS 21:060:10 CCSJ13 National Standards of People's Republic of China Small series of hexagon flange bolts Class A (wrench characteristics according to Class B) (ISO 4162:2012, MOD) Released on 2023-05-23 2023-12-01 Implementation State Administration for Market Regulation Released by the National Standardization Management Committee forewordThis 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 is part 3 of GB/T 16674 "Hexagon Flange Bolts": GB/T 16674 has released the following parts: ---GB/T 16674:1 Small series of hexagon flange bolts; ---GB/T 16674:2 Small series of hexagon flange bolts with fine teeth; ---GB/T 16674:3 Small series of hexagonal flange bolts, grade A (wrenching characteristics according to grade B): This document is modified to adopt ISO 4162:2012 "Small series of hexagon flange bolts, grade A (wrenching characteristics according to grade B)": Compared with ISO 4162:2012, this document has made the following structural adjustments: --- Added "Terms and Definitions" and "Signs and Labels" Chapter 2; ---Chapter 4 corresponds to Chapter 3 of ISO 4162:2012, Chapter 5 corresponds to Chapter 4 of ISO 4162:2012, and Chapter 7 corresponds to Chapter 5 of ISO 4162:2012: The technical differences between this document and ISO 4162:2012 and their reasons are as follows: ---Delete the provisions of ISO 4162: If other technical requirements are required, choose from ISO 3506-1 (see Chapter 1), which does not belong to this part Sub-specified content; ---Delete level 9:8 to comply with the provisions of the basic standard on product performance levels (see Chapter 1, Table 2); --- Replaced ISO 4753 with the normatively quoted GB/T 2 to adapt to the technical conditions of our country (see Figure 1); --- Replaced ISO 8992 with the normatively quoted GB/T 16938 to adapt to the technical conditions of our country (see Table 2); --- Replaced ISO 261 with the normatively quoted GB/T 193 to adapt to my country's technical conditions (see Table 2); --- Replaced ISO 965-2 with the normatively quoted GB/T 9145 to adapt to the technical conditions of our country (see Table 2); --- Replaced ISO 898-1 with the normatively quoted GB/T 3098:1 to adapt to the technical conditions of our country (see Table 2, Chapter 6); --- Replaced ISO 3506-1 with the normatively quoted GB/T 3098:6 to adapt to my country's technical conditions (see Table 2, Chapter 6); --- Replaced ISO 4759-1 with the normatively quoted GB/T 3103:1 to adapt to the technical conditions of our country (see Table 2); --- Replaced ISO 4042 with the normatively quoted GB/T 5267:1 to adapt to the technical conditions of our country (see Table 2); --- Replaced ISO 10683 with the normatively quoted GB/T 5267:2 to adapt to the technical conditions of our country (see Table 2); --- Replaced ISO 6157-1 with the normatively quoted GB/T 5779:1 to adapt to the technical conditions of our country (see Table 2); --- Replaced ISO 3269 with the normatively quoted GB/T 90:1 to adapt to the technical conditions of our country (see Table 2); --- Replaced ISO 225 with the normatively quoted GB/T 5276 to adapt to the technical conditions of our country; --- Added normative references GB/T 90:2 (see Table 2), GB/T 3099:4 (see 6:2), GB/T 1237 (see Chapter 7), to comply with my country's basic standard for fasteners; ---Change the angle of the flange support surface to 0:75°±0:5°, consistent with GB/T 16674:1 and GB/T 16674:2 (see Figure 3); ---GB/T 5267:4 only specifies the passivation treatment process, but does not specify the inspection method, and the passivation treatment of stainless steel is changed from the normative reference to Informative references (see Table 2); ---Deleted the reference to ISO 6157-3 (GB/T 5779:3) in surface defects (see Table 2), 8:8 and 10:9 products surface defects It only needs to comply with GB/T 5779:1; --- Increase the technical requirements for packaging (see Table 2) to meet the basic standards for fasteners in my country; --- Increased the provisions of marking and labeling (see Chapter 6) to adapt to the technical conditions of fastener products; --- Change the marking example to a simplified marking example (see Chapter 7) to comply with the provisions of GB/T 1237: The following editorial changes have been made to this document: --- Replaced the corresponding international documents with the Chinese documents quoted for information, and changed the 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 Machinery Industry Federation: This document is under the jurisdiction of the National Fastener Standardization Technical Committee (SAC/TC85): This document is drafted by: Hunan Shenyi Machinery Application Research Institute Co:, Ltd:, China Machinery Productivity Promotion Center Co:, Ltd:, Zhoushan City 7412 Factory, Sichuan Aerospace Shiyuan Technology Co:, Ltd:, Ningbo Ningli High Strength Fastener Co:, Ltd:, Shandong Gaoqiang Fastener Co:, Ltd:, Henan Airlines Tianjinggong Manufacturing Co:, Ltd:, Jinan Shida Fastener Co:, Ltd:, and Quality Supervision and Testing Center for General Parts in Machinery Industry: This document is interpreted by the National Fastener Standardization Technical Committee:IntroductionAmong the bolt products, hexagon head bolts are widely used in production and use, and are irreplaceable fastener products: hex flange bolts The head is composed of two parts, the hexagonal head and the flange surface, and its "support area to stress area ratio" is greater than that of ordinary hexagonal head bolts: The bolt can withstand higher preload and has better anti-loosening performance, so it is widely used in automobile engines, heavy machinery and other products: GB/T 16674 "Hexagonal Flange Bolts" aims to standardize the technical requirements and head inspection methods of hexagonal flange bolts, and consists of the following three parts: ---GB/T 16674:1 Small series of hexagon flange bolts: The purpose is to standardize the type of A-level small series of hexagon flange bolts Type dimensions, technical conditions and marks: ---GB/T 16674:2 Small series of hexagon flange bolts with fine teeth: The purpose is to standardize the small series of fine teeth hexagonal flange surface screws The type, size, technical condition and marking of bolts: ---GB/T 16674:3 Small series of hexagonal flange bolts, grade A (wrenching characteristics according to grade B): The purpose is to standardize the A-level small series List the type dimensions, technical conditions and marks of hexagon flange bolts (wrenching characteristics according to grade B): GB/T 16674:1, GB/T 16674:2 and GB/T 16674:3 are respectively modified to adopt ISO 15071, ISO 15072 and ISO 4162, and the Different types of small series of hexagonal flange bolts are included in the GB/T 16674 series, which is convenient to use: GB/T 16674:3 in addition to hexagonal Except for the product grade specified in the head wrench part as Class B, the rest is the same as GB/T 16674:1: Small series of hexagon flange bolts Class A (wrench characteristics according to Class B)1 ScopeThis document specifies the type size, technical conditions, marking labels and mark: This document is applicable to thread specifications M5~M16, small series, performance grades 8:8, 10:9, A2-70, product grade A (wrench special According to grade B) hexagonal flange bolts:2 Normative referencesThe 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 2 The end of externally threaded parts of fasteners (GB/T 2-2016, ISO 4753:2011, MOD) GB/T 90:1 Fastener acceptance inspection (GB/T 90:1-2023, ISO 3269:2019, MOD) GB/T 90:2 Marking and packaging of fasteners GB/T 193 Common thread diameter and pitch series (GB/T 193-2003, ISO 261:1998, MOD) GB/T 1237 Fastener Marking Method (GB/T 1237-2000, eqvISO 8991:1986) GB/T 3098:1 Mechanical properties of fasteners Bolts, screws and studs (GB/T 3098:1-2010, ISO 898-1:2009, MOD) GB/T 3098:6 Mechanical properties of fasteners Stainless steel bolts, screws and studs (GB/T 3098:6-2023, ISO 3506-1: 2020, MOD) GB/T 3099:4 Fastener term control, inspection, delivery, receipt and quality (GB/T 3099:4-2021, ISO 1891-4: 2018, MOD) GB/T 3103:1 Fastener tolerances for bolts, screws, studs and nuts (GB/T 3103:1-2002, idtISO 4759-1:2000) GB/T 5267:1 Fastener Electroplating (GB/T 5267:1-2023, ISO 4042:2022, MOD) GB/T 5267:2 Electroless zinc flake coating for fasteners (GB/T 5267:2-2021, ISO 10683:2018, MOD) GB/T 5276 Fastener bolts, screws, studs and nuts size codes and labels (GB/T 5276-2015, ISO 225: 2010, MOD) GB/T 5779:1 General requirements for surface defects of fasteners bolts, screws and studs (GB/T 5779:1-2000, idtISO 6157- 1:1988) GB/T 9145 Limit dimensions of ordinary threads with medium precision and optimal series (GB/T 9145-2003, ISO 965-2:1998, MOD) GB/T 16938 General Specifications for Fastener Bolts, Screws, Studs and Nuts (GB/T 16938-2008, ISO 8992: 2005, IDT)3 Terms and DefinitionsThis document does not have terms and definitions that need to be defined: ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 16674.3-2023_English be delivered?Answer: Upon your order, we will start to translate GB/T 16674.3-2023_English as soon as possible, and keep you informed of the progress. 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