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The inner lock cylinder of the anti-theft door is recessed by 1 cm, which is not easy to install and is inconvenient to open.
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Let's see this one centimeter in the summer vacation, he can add a smart lock, first in this way, the security technology is higher, and it is more convenient.
1. Unscrew down the two screws on and below the pull handle panel; >>>More
It's quite simple to change the lock cylinder of the anti-theft door, just a diagram.
How much does it cost to change the lock cylinder for the security door. >>>More
That's basically it.
Only the lock cylinder of the same type can be loaded into the original lock cylinder hole. >>>More
Control a deadbolt. If you want to talk about the function, that is, when you are in the door, you are too lazy to lock the door with a key, for safety, install this, because if it is locked with a single oblique deadbolt, it is easy to enter from outside the door.