GB/T 70.2-2008 in English

SUPERSEDED

Hexagon socket button head screws

Issued on:2008-08-25
Implemented on:2009-02-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $40.00
$39.00

Standard No:	GB/T 70.2-2008
Document status:	SUPERSEDED
Superseded by:	GB/T 70.2-2015 Hexagon socket button head screws
Superseded on:	2017-01-01
Title in English:	Hexagon socket button head screws
Title in Chinese:	内六角平圆头螺钉
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2008-08-25
Implemented on:	2009-02-01
Superseding:	GB/T 70.2-2000 Hexagon Socket Button Head Screws
ICS Classification:	21.060.10-Bolts, screws, studs
Chinese Classification:	J13-Fastener
Professional Classification:	GB-National Standard
Related Keywords:	hexagon socket button head a-grade hexagon socket head screw hexagon socket head
Related Topics:	GB/t 70.2-2015 inner hexagon flat head round peak flat head round peak gb/t70.2-2000 gb/t70.2 gb/t70.2-2015 gb/t70.2-2008 GB/T70.2-2008 fillet gauge Socket head cap screws GB/T70.2 GBT70.2 GB/T 70.2-2000 GB/T 70.2-2008 GBT70.2-2015 round head nail Hexagon socket round head bolts with flange type Hexagon socket head screws Hexagon head wood screws abroad Round head countersunk head hexagon socket bolts Hexagon countersunk head screws country How many types of inner hexagons are there? Tightening torque for hexagon socket head screws

《GB/T 70.2-2008内六角平圆头螺钉》由TC85（全国紧固件标准化技术委员会）归口，主管部门为中国机械工业联合会。
本部分是国家标准“内六角螺钉”产品（含量规）系列标准之一。本部分是ＧＢ／Ｔ７０的第２部分。本部分代替ＧＢ／Ｔ７０．２―２０００《内六角平圆头螺钉》。本部分规定了螺纹规格为Ｍ３～Ｍ１６，性能等级为８．８、１０．９和１２．９级，产品等级为Ａ级的内六角平圆头螺钉。本部分与ＧＢ／Ｔ７０．２―２０００相比主要变化如下：
―――增加引用标准ＧＢ／Ｔ５２６７．２《紧固件　非电解锌片涂层》和ＧＢ／Ｔ７０．５《内六角量规》（第２章）；
―――取消附录Ａ。

Scope

This standard stipulates that the thread specification is M3~M16, the performance grade is 8.8, 10.9 and 12.9, and the product grade is A-grade hexagon socket head screw. If other technical requirements are required, they should be selected from current standards (such as GB/T 196, GB/T 3106, GB/T 3098.1 and GB/T 3103.1).

Loading PDF document...

Error loading PDF. Please make sure the file is valid and try again.

We also recommend

GB/T 10433-2024 in English

Fasteners—Studs and ceramic ferrules for arc stud welding
2024-09-29
GB/T 33943-2017 in English

High-strength structural anchor bolting assemblies for steel structures
2017-07-12
GB 950-1986 in English

Cross recessed round head wood screws
1986-07-02
GB/T 3098.1-2010 in English

Mechanical properties of fasteners—Bolts,screws and studs
2011-01-10
GB/T 13806.1-1992 in English

for fine mechanics - Cross recessed screws
1992-01-01
GB/T 15-2013 in English

Mushroom head nib bolts
2013-06-09
GB/T 41157.1-2022 in English

Fasteners for nuclear power plants—Part 1：Bolts, screws and studs made of alloy steel
2022-03-09
GB/Z 32564-2016 in English

Nut design guide
2016-02-24
GB/T 2670.1-2017 in English

Hexalobular socket pan head tapping screws
2017-07-12
GB/T 15389-2025 in English

Fasteners—Threaded rods
2025-10-05