Featuring a Limited Lifetime Guarantee, Defiant offers this Hartford Keyed Entry knob and Single Cylinder Deadbolt with proven durability and security. The new design features a 70 mm rose plate, providing easy coverage of previous paint marks in replacement applications. The design provides easy installation with only a Phillips screwdriver. The finish gives a clean look with a modern feel to your home. This lever is most effective for exterior doors where keyed entry and security is needed. Defiant keyed locks can be re-keyed to fit your existing KW1 keyway.