Titan Single Cylinder Deadbolt, Lifetime Polished Brass Finish. Deadbolt operated by key outside and thumbturn inside. 6Pin Removable Core. Adjustable 2 3/8″ – 2 3/4″ Backset. Fits 1 3/8″ – 1 3/4″ doors standard, 1 7/8″ – 2 1/4″ doors optional. Reside