This high-quality knob lockset features a Kwikset type pop-out cylinder with a SC1 keyway in a Satin Nickel finish. Features an adjustable backset of 2 3/8 inches or 2 3/4 inches. Fits doors from 1 3/8 inches to 1 3/4 inches thick. All hardware required for mounting is included. These are durable, attractive locks with excellent latch mechanisms that are carried by many independent lumber yards for new home construction. ANSI/BHMA Grade 3 Security. HL220455