
I bought two of these for sliding doors. The trick to installation is to create as little slack as possible when the door is locked. If you leave too much slack and start rocking the door back and forth to try and pick the lock, it may fail. One of my locks lost the pin that holds the deadbolt together. I had to take it off the door, twist it and secure it with a small screw instead of a pin to hold the latch. It works but turning the knob is a little hard. I don't know if I would buy them again.

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