Chinese Standard: GB/T 802.1-2008

Acorn nuts—Assembling type

全国紧固件标准化技术委员会(SAC/TC 85)

GB/T 802的本部分规定了螺纹规格为M4～M24，性能等级为6、8、A250、A270、A450、A470、CU2、CU3和AL4级，产品等级为A和B级的组合式盖形螺母。A级用于D≤16 mm；B级用于D>16 mm的螺母。

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