QC/T 1257-2025 Pending Industry standards-Car

QC/T 1257-2025 Hexagon flange removing scraps and grounding bolt

Publish Date: 2025-12-29 Implement Date: 2026-07-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: QC/T 1257-2025

Standard Type: Industry standards

Standard Status: Pending

is_force_gb: no

CCS Name: Fasteners

ICS Name: Road vehicle equipment

Publish Date: 2025-12-29

Implement Date: 2026-07-01

Publisher: 中华人民共和国工业和信息化部

Technical Committee: 全国汽车标准化技术委员会(SAC/TC 114)

Pages: 12 pages

Scope

本文件规定了螺纹公称直径d=6 mm~10 mm的六角法兰面自排屑接地螺栓（以下简称“螺栓”）的型式尺寸、技术条件、产品编号，描述了导电性能试验方法。
本文件适用于汽车全钢结构接地连接点，如汽车动力总成接地线束、电容接地线束、仪表板接地线束等各类汽车电气系统部件。

Development Information

Drafting Units:

中国第一汽车股份有限公司、一汽解放汽车有限公司、长城汽车股份有限公司、北京汽车集团越野车有限公司、浙江裕泰汽车配件有限公司、四川航天世源科技有限公司

Drafting Persons:

杨朝阳、孙超、石浩男、张虎、侯福鑫、荣雪东、栾俭新、汪斌、罗洪

Word Count: 13 Thousand words Pages: 12 pages

Referenced Standards

GB/T 90.1-2002 Fasteners—Acceptance inspection GB/T 90.1-2023 Fasteners—Acceptance inspection GB/T 90.2-2002 Fasteners—Marking and packaging GB/T 196-2003 General purpose metric screw threads—Basic dimensions GB/T 196-2025 General purpose metric screw threads—Basic dimensions GB/T 197-2003 General purpose metric screw threads—Tolerances GB/T 197-2018 General purpose metric screw threads—Tolerances GB/T 3098.1-2000 Mechanical properties of fasteners—Bolts, screws and studs GB/T 3098.1-2010 Mechanical properties of fasteners—Bolts,screws and studs GB/T 3103.1-2002 Tolerances for fasteners—Bolts, screws, studs and nuts GB/T 5779.1-2000 Fasteners—Surface discontinuities—Bolts,screws and studs for general requirements QC/T 326-2013 Car standard parts product numbering rules QC/T 326-2025 Numbering rules for automotive standardized parts QC/T 625-2024 Metallic coatings and conversion coatings for automobile QC/T 625-2013 Car coating and plating layers and chemical treatment layers QC/T 863-2011 Welding square nut

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