What is the size of the lock cylinder of the security security door

1. Unscrew down the two screws on and below the pull handle panel; >>>More

How much does it cost to change the lock cylinder for the security door. >>>More

It depends on what kind of lock you get, some are of good quality and some are of average quality. Under normal circumstances, not the whole lock is changed together, and the lock cylinder is changed more, the general forty or fifty can be, and the better ones are seventy or eighty. Generally, when you go to find a lock to change the lock cylinder, it is installed in a package. >>>More

It's quite simple to change the lock cylinder of the anti-theft door, just a diagram.

Measure the size of the lock cylinder.

First remove the lock cylinder to see, first remove the handle panel, and then buckle the cover on the lock cylinder to remove, fix the lock cylinder to screw on the side of the door, basically parallel to the lock cylinder, remove it can be measured. >>>More