coarse thread screw

例句：

1. 1. The carpenter used a rough thread screw to fasten the wooden planks together.
   木匠用粗糙的螺纹螺丝将木板固定在一起。
2. 2. The construction worker used a coarse thread screw to tighten the bolts on the roof.
   建筑工人用粗螺纹螺丝来紧固屋顶上的螺栓。
3. 3. The engineer used a coarse thread screw to secure the nuts on the gearbox.
   工程师用粗螺纹螺丝来固定齿轮箱上的螺母。