square weld nut

例句：

1. 1.The square weld nut is a crucial component in the assembly of the machine.
   正方形焊接螺母是组装机器的关键部件。
2. 2.The square weld nut was designed to provide a secure and reliable connection between the two pieces of metal.
   正方形焊接螺母被设计用来在两块金属之间提供一种安全且可靠的连接。
3. 3. The square weld nut was used to tighten the bolts on the door, ensuring that they would not come loose during use.
   正方形焊接螺母被用来紧固门上的螺栓，确保它们在使用过程中不会松动。