snaphead bolt

例句：

1. 1. The engineer used a snaphead bolt to secure the roof.
   工程师用一个弹射头螺栓来固定屋顶。
2. 2.The snaphead bolt was designed to be easily removed for maintenance.
   这种弹射头螺栓设计成易于拆卸，便于维护。
3. 3. The snaphead bolt was used in the construction of the bridge.
   这种弹射头螺栓用于桥梁的建设。