four pin driven collar nut

例句：

1. 1. Thefour-pin driven collar nut isa crucial component in the assembly of bicycleframes.
   四针驱动的扣环螺母是自行车框架组装中的关键部件。
2. 2. The engineerused a four-pin driven collarnut to secure the bolts in place.
   工程师使用四针驱动的扣环螺母来固定螺栓到位。
3. 3. The four-pin driven collarnut was designed to prevent thebolts from loosening over time.
   四针驱动的扣环螺母被设计成防止螺栓在长时间内松动。