Locks from the inside with a turn button and unlocks from the outside with the keys. Keep in mind when installing you have to line everything up perfectly.
Adjustable latch to fit 2 3/8" or 2 3/4" backsets. Fits on 1 3/8" to 1 3/4" thick doors. Adjustable distance from the center hole of the handle to the center hole is 9 1/32" to 10 1/4". Please measure the door thickness and backsets before purchg. Made of premium stainless steel of splendid rust protection and anti-oxidation, finished with electroplating technology for anti-corrosion. Electroplating paint finish gives you a perfect touch, and easy to grasp the door knobs. We are committed to enhancing your shopping experience. We will provide you with the best solution.