门扣 meaning in English

kep; door holder; catch

The catch on this door seems to be broken . it won ' t open
这扇门的门扣好象断了,门打不开了。
The moment he entered the room , bill fixed the chain across the door
比尔一进入房间,就用链条把卧室的门扣上。
Suspension catch for door hooks
门钩用悬挂门扣
For added protection , fit a high quality door guard or door chain and a wide angle viewer
若要加强保安，可安装优质防盗?或门扣，广角防盗眼也是不可缺少的。