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螺母是什么形状

更新时间: 2021-02-13 20:56:26     

1、螺母形状是六角形状.其材质有不锈钢的和铁的。

2、铁的六角螺母按等级分有普通螺母和8级螺母,不锈钢螺母有分为不锈钢SUS201和不锈钢SUS304,不锈钢SUS304,六角螺母与螺栓、螺钉配合使用,起连接紧固机件作用。

关键词: 螺母 什么 形状

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