GB/T 9074.1-2018: Translated English of Chinese Standard. (GBT 9074.1-2018, GB/T9074.1-2018, GBT9074.1-2018): Bolt or screw and washer assemblies with plain washers

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https://www.chinesestandard.net, 18 maj 2019 - 13 sidor
This Part of GB/T 9074 specifies the type size, technical conditions and marks for bolt or screw and washer assemblies with plain washers. This Part applies to bolt or screw and washer assemblies with plain washers of which the thread specifications are M2~M12, there is a flat bearing surface, the performance levels of bolt or screw are levels 8.8, 9.8 and 10.9, the hardness level of plain washer is 200 HV or 300 HV.
 

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Foreword
3
Scope
6
Type size
7
Technical conditions and reference standards
10
Combination of bolt or screw and washer
11
Marks
12
Annex A informative Manufacturing method for bolt or screw and washer assemblies with plain washers
13

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