螺母，螺帽中部有螺纹用于与螺栓或螺钉相配合的小块金属或木头

螺母，螺帽中部有螺纹用于与螺栓或螺钉相配合的小块金属或木头的英文翻译

基本释义

• a small block of metal or wood with a central,threaded hole that is designed to fit around and secure a bolt or screw