knuckle stop screw

例句：

1. 1.The car's engine was seized by a knuckle-stop screw.
   汽车的引擎被一个关节止动螺丝卡住了。
2. 2.The engineer used a knuckle-stop screw to fix the broken pipe.
   工程师用一个关节止动螺丝来固定这个破裂的管子。
3. 3. The tool is designed to stop screws from turning while in use.
   这个工具设计用来在使用时阻止螺丝转动。