管闩

例句：

1. 1. The door was securely fastened with a lock.
   这扇门用锁牢牢地锁上了。
2. 2. He used his key to unlock the door.
   他用钥匙打开了门。
3. 3. The bolt on the window was broken, allowing him easy access.
   窗户上的插销被弄断了，他很容易就进去了。