几个螺丝批和两个不同的切割面给这个小工具的效用吨。
Several screwdrivers and two different cutting surfaces give this little tool a ton of usefulness.
自攻螺丝的螺纹会在孔内切割出内螺纹孔，然后锁紧两块铁板。
These screws have threads that cut the hole and are made to fasten metal to metal.
一枚有切割的螺纹和宽头的金属钉，可以用螺丝刀拧入以作为紧固物，尤指。
A metal pin with incised threads and a broad slotted head that can be driven as a fastener by turning with a screwdriver, especially.
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