Chinese Standard: GB/T 802.5-2009

Prevailing torque type hexagon acorn nuts with non-metallic insert—Welding type

MOD  DIN 986:2000

全国紧固件标准化技术委员会

GB/T 802的本部分规定了螺纹规格为M4～M20、性能等级为5、6、8、10级、产品等级为A和B级的焊接型非金属嵌件六角锁紧盖形螺母。A级用于D≤16 mm；B级用于D＞16 mm的螺母。

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