The Design House 727149 Entry Knob and Deadbolt Combo accept a key on 1 side of the lock and are operated by a turn-button knob on the other side. Finished in polished brass and designed for left or Right-Hand doors, this knob fits the 2 most common backsets in the U.S (2-3/4 in. and 2-3/8 in.). This combo pack includes a full 1/2 in. throw and 1 in. deadbolt throw. Entry knobs are often used on front doors and back doors. Use this knob on standard 1-3/8 in. and 1-3/4 in., thick doors with a cross bore 2-1/8 in. Dia or edge bore 1-1/16 in. Dia (1 in. x 2-1/4 in. radius corner faceplate). This unit features anti-bump pins as an added security measure to keep your door securely shut when locked. This product is ANSI Grade-3 certified, which means this knob is rated for residential security. KW1 Keyway with entry lock KA3 - 3 keyed alike per cut case. The Design House 727149 Entry Knob and Deadbolt Combo come with a limited lifetime mechanical and 5-year finish warranty. With years of hands-on experience, Design House understands every aspect of the home decor industry, and devotes itself to providing quality products across the home decor spectrum. Providing value to their customers, Design House uses industry leading merchandising solutions and innovative programs. Design House is committed to providing high quality products for your home improvement projects.