Featuring a Lifetime Guarantee, DEFIANT meets or exceeds ANSI Grade 3 Standards for residential use. This lock features a drive in latch with an adjustable backset and optional radius cut faceplate . Locks can be re-keyed to fit your existing KW1 keyway. The Powder coated finish will provide years of durability. When used as a replacement lock only a screwdriver is need to make installation a snap.