The Design House 779199 Egg Keyed Entry Door Knob is perfect for front doors, back doors, and garage doors that require a keyed entry. With home security in mind, the Egg door handle accepts a key on one side of the lock and operates by a turn-button knob on the other side. With an oval shape and a matte black finish, this door knob features versatility in style and design that coordinates well with modern, traditional, and rustic styles alike. Designed for left or right-hand doors, this door knob fits the two most common backsets in the U.S. (2-3/4 inches and 2-3/8 inches). The durable 2-way latch has a 1/2 inch latch bolt plated in nickel and does not budge once in place. Use this locking knob on standard 1-3/8 inches and 1-3/4 inches thick doors. This lock has a 1 inch by 2-1/4 inches radius corner faceplate and features a 5-pin cylinder for your security. If you are preparing your door for installation, the cross bore should be 2-1/8 inches in diameter and the edge bore should be 1 inch in diameter. This latching door knob is ANSI Grade-3 certified and rated for residential security. By installing the Design House Egg Keyed Entry Lockset in your home, you gain a sense of security and comfort. Designed and manufactured by Design House, the trusted source for quality lighting, hardware, plumbing, kitchen, and bath products for every taste and budget.