TERRACE DOOR KNOBS by DESIGN HOUSE SINCE 1872- Use this Interior Door Knob on standard 1-3/8 inches & 1-3/4 inches thick doors with a cross bore 2-1/8 inches diameter or edge bore 1-1/16 inches diameter 1 inch x 2-1/4 inches radius corner faceplate KEYED ENTRY DOOR KNOB- The Design House 728709 Terrace Oil Rubbed Bronze Entry Door Knob accepts a key on one side of the lock and is operated by a turn-button Knob on the other side. Locks on one side and rated for residential security. DOOR KNOBS INTERIOR OIL RUBBED BRONZE- Safety - This unit features Anti-Bump Pins as an added security measure to keep your door securely shut when locked. Entry Door Knobs are often used on front doors and back doors. BRUSHED BRONZE BATHROOM ACCESSORIES - 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. BRONZE DOOR KNOB- 5-Year limited mechanical/5-Year limited finish warranty. Use this knob on standard 1-3/8-inch and 1-3/4-inch 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).