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Chinese Standard: GB/T 5785-2025

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Fasteners—Hexagon head bolts—Fine pitch thread


Standard in brief
Scope of Application:  
本文件规定了A和B级细牙螺纹六角头螺栓的型式尺寸、技术要求、标志和标签及标记。
本文件适用于螺纹公称直径8 mm~64 mm,细牙螺纹,性能等级为8.8、10.9、12.9/12.9、A2-50、A2-70、A4-50、A4-70、A4-80、D4-70、D4-80、D6-70、D6-80,产品等级为A级和B级,钢和不锈钢制六角头螺栓(以下简称“螺栓”)。

Basic information
Standard No:GB/T 5785-2025
Standard Name:紧固件 六角头螺栓 细牙
English Name:Fasteners—Hexagon head bolts—Fine pitch thread
Standard Status:现行
Release Date:1986-01-17
Effective Date:2026-02-01
Language of Publication:中文简体

Standard Classification
ICS Number:21.060.10
CCS Number:J13

Related Standards
Referenced Standards:GB/T 2,GB/T 90.1,GB/T 90.2,GB/T 197,GB/T 1237,GB/T 3098.1,GB/T 3098.6,GB/T 3098.23,GB/T 3099.4,GB/T 3103.1,GB/T 3106,GB/T 5267.1,GB/T 5267.2,GB/T 5276,GB/T 5779.1,GB/T 5779.3,GB/T 9144,GB/T 16938
Adopted Standards:ISO 8765:2022
Adopted Standard Name:《紧固件 细牙六角头螺栓 产品等级A和B级》
Adoption Level:MOD

Publication Information
Number of pages:20
Number of words:27 K
Format:大16
Edition:1
Color Pages:0
Electronic Version:Yes
Color Images:No
Print Publication Date:2025-10-01

Standard Revision Information
Has Amendment:No

Other Information
Application Dept:国家市场监督管理总局、国家标准化管理委员会
Standard Type:CN
Standard Attribute:GB
Other Standard Number:5785
Drafting Organization:雁栖湖基础制造技术研究院(北京)有限公司、山东高强紧固件有限公司、宁波群力紧固件制造有限公司、上海高强度螺栓厂有限公司、浙江海力股份有限公司
Management Organization:全国紧固件标准化技术委员会(SAC/TC 85)
Proposing Department:中国机械工业联合会

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