Kwikset 660 Deadbolt Lock, Polished Brass Round Exterior Keyed Front Entry Door, Single Cylinder Dead Bolt

The largest-selling deadbolt in America, the 600 series provides tough, effective protection at an affordable price. This single cylinder deadbolt is operated by a key on the outside or a thumb turn on the inside. The Polished Brass finish adds to the traditional look and feel of the product and makes a classic statement.

• KEYED DEADBOLT: Use on doors requiring a high level of security, turn piece interior locking, exterior locking using a key. Recommended for exterior-facing doors
• EASY INSTALL: Do it yourself, installs in minutes with just a screwdriver, all the hardware you need is included for a hassle-free installation, detailed directions provided
• FITS STANDARD DOORS: Fits standard size doors 1-3/8" to 1-3/4" thick, latch backset adjusts to either 2-3/8" or 2-3/4" with just a twist during installation
• ADJUSTABLE LATCH: With just a twist during installation, the latch backset can be adjusted to either 2-3/8" or 2-3/4" in order to fit all standard door preparations
• TRADITIONAL DESIGN: Available in a classic, traditional door hardware style with simple, unique details to match your home décor
• CERTIFIED TRUSTED QUALITY: Security, Durability and Finish are Grade 3 BHMA certified, designed for reliable protection, providing peace of mind at home
• WARRANTY PROTECTION: Our products are backed by a lifetime mechanical and finish warranty with great customer service, see Kwikset warranty for more details