cross lead screw nut

例句：

1. 1. This tool is used to tighten or loosen bolts and screws.
   这个工具用来紧固或松开螺栓和螺丝。
2. 2. The engineer carefully removed the cross-headed screw nut from the machine.
   工程师小心翼翼地从机器上拆下了十字头螺钉螺母。
3. 3. The mechanic replaced the cross-headed screw nut with a new one.
   机械师用一个新的十字头螺钉螺母替换了旧的。