Backset is 2 3/4 This is reversible for right or left hand. A lock with the key over ride is a must when there in only one entrance/exit.
Most are not and it. The item "Brass Kaba Simplex Old Style 1021 Pushbutton Lock OverRide Core Included withKeys" is in sale since Friday, February 1, 2019. This item is in the category "Business & Industrial\Building Materials & Supplies\Doors & Fixtures\Locks & Locksets". The seller is "bake98" and is located in Oxford, Pennsylvania.This item can be shipped to United States.