自攻自钻螺钉 SELF-DRILING TAPPING SCREWS ; Self-tapping self-drilling screws
自攻自钻螺丝 Self Drilling Screw
自钻自攻螺钉 DRILING TAPPING SCREWS ; SELF-DRILING TAPPING SCREWS
六角凸缘自钻自攻螺钉 Hexagon washer head drilling screws
试验结果表明：自攻自钻螺钉群连接件具有“群体折减效应”。
The destructive mechanism of self-drilling screws connection is recorded in the test.
首先，对单颗自攻自钻螺钉连接件和自攻自钻螺钉群连接件进行了抗剪承载力试验研究。
The study's focus is describing the detailed results on bearing capacity of self-drilling screws connection by tests and numerical analysis. A more proper method is recommended.
我公司主导产品为钻尾螺丝系列(六角华司头、盘头、钮扣头、喇叭头、六角法兰头、小仔头等)，同时也生产干壁钉、纤维板钉和自攻钉等自攻类螺丝。
Our company is main products are series of drilling screws, and mean-while we also have sub production line for Drywall screw, Chipboard screw, and Tapping etc.
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