佛山市钰海螺丝机械有限公司
自攻螺丝
发布日期:2020-10-20 14:34:44

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  是一种带有钻头的螺丝,通过专用的电动工具施工,钻孔、攻丝、固定、锁紧一次完成。自攻螺丝主要用于一些较薄板件的连接与固定,如彩钢板与彩钢板的连接,彩钢板与檩条、墙梁的连接等,其穿透能力一般不超过 6mm,最大不超过12mm。自攻螺丝常常暴露在室外,自身有很强的耐腐蚀能力;其橡胶密封圈能保证螺丝处不渗水且具有良好的耐腐蚀性。

  自攻螺丝通常用螺钉直径级数、每英寸长度螺纹数量及螺杆长度三个参数来描述。螺钉直径级数有10级和12级两种,其对应螺钉直径分别为4.87mm和5.43mm;每英寸长度螺纹数量有14、16、24三种级别,每英寸长度螺纹数量越多,其自钻能力越强。

  一般是指尖头的,粗牙的,质地较硬的木螺丝,也有用于铝合金、塑料的。用于金属孔开螺纹的一种特殊自攻螺丝被叫做丝攻。

  自攻螺钉硬度高,螺纹间距宽,螺纹深,表面不光滑,木螺钉则相反,另一个差别更明显,木螺钉后段没有螺纹。木螺钉螺纹细,尖钝且软。自攻螺钉螺纹较粗,尖锐且硬。

一模二冲打头机|二模三冲冷镦机|螺丝机器

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