Design House 727438 Single Cylinder Deadbolt, Polished Brass, Satin Nickel Locks and unlocks with a key on one side and twist knob on the other Adjusts for 2-3/4-inch and 2-3/8-inch backsets Fits standard 1-3/8-inch and 1-3/4-inch thick doors Polished Brass finish Limited lifetime mechanical and 5-year finish warranty