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Chinese Standard: GB/T 5781-2025

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Fasteners—Hexagon head bolts—Full thread—Product grade C


Standard in brief
Scope of Application:  
本文件规定了C级全螺纹六角头螺栓的型式尺寸、技术要求、标志和标签及标记。
本文件适用于螺纹规格为M5~M64、粗牙螺纹、性能等级为4.6级和4.8级、产品等级为C级、钢制六角头螺栓(以下简称“螺栓”)。

Basic information
Standard No:GB/T 5781-2025
Standard Name:紧固件 六角头螺栓 全螺纹 C级
English Name:Fasteners—Hexagon head bolts—Full thread—Product grade C
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 3099.4,GB/T 3103.1,GB/T 3106,GB/T 5267.1,GB/T 5267.2,GB/T 5267.3,GB/T 5276,GB/T 5779.1,GB/T 16938
Adopted Standards:ISO 4018:2022
Adopted Standard Name:《紧固件 六角头螺钉 C级》
Adoption Level:MOD

Publication Information
Number of pages:16
Number of words:17 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:5781
Drafting Organization:中机生产力促进中心有限公司、浙江海力股份有限公司、山东高强紧固件有限公司、浙江日星标准件有限公司、河南永光电力科技有限公司
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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