night bolt

• 保险插销,弹簧插销

night bolt的用法和样例：

例句

1. He locked the door and pressed the bolt home.
   他锁上房门，并插好插销。
2. A wood screw will fill the breach until you can buy the proper bolt for the job.
   在你能够买到合适插销以前，先用一枚木螺丝替代一下。