This ANSI Grade 3 ball knob passage lockset complements both traditional and contemporary residential interior doors. This set has no thumb-turn lock, ensuring easy opening of doors which never need to be locked. The backset is adjustable between 2-3/8-Inch and 2-3/4-Inch. This lockset is made to fit doors between 1-3/8-Inch and 1-3/4-Inch. It features a dead latch style backset and a square corner striker. The US15 satin nickel finish is protected by a clear powder coat finish. The excellent craftsmanship is backed by Legend"s Limited Lifetime Warranty.