一种或有螺帽或有塞孔的螺纹扣件；其开槽头可以由螺丝起子钉入

一种或有螺帽或有塞孔的螺纹扣件；其开槽头可以由螺丝起子钉入的英文翻译

基本释义

• a threaded fastener used either with a nut or with a tapped hole; slotted head can be driven by a screwdriver