A fastener consisting of a threaded pin or rod with a head at one end, designed to be inserted through holes in assembled parts and secured by a mated nut that is tightened by applying torque.
英
美
释义
螺栓一种由可穿过的栓或竿构成的条形紧固器,一端有头,用于插进集合部分相应的孔,再用配对的螺帽旋紧
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