Kwikset 660 Deadbolt Lock, Satin Nickel Round Exterior Keyed Front Entry Door, Single Cylinder Dead Bolt, with Microban Protection

Price: $19.97
(as of Sep 15, 2026 00:17:25 UTC – Details)


The largest-selling deadbolt in America, the 600 series provide 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. Secure your front door with Kwikset keyed entry door locks, security sets and deadbolts. Recommended for exterior-facing doors or securing interior rooms with a key for maximum privacy. Choose from a variety of stylish finishes to match your home décor. Kwikset is the #1 selling U.S. lock brand*, protecting families with trusted security since 1946. Kwikset offers smart, simple, stylish and secure door hardware for every home or business need — from mechanical locks with patented SmartKey Security to innovative and flexible smart home technology. *YipitData Unit Share Report, 2026.
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
SMARTKEY SECURITY: Kwikset’s SmartKey Security technology protects against advanced break-in techniques and allows you to re-key your lock yourself in seconds
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
Customers find the deadbolt to be a good quality product that’s easy to install and re-key to existing keys, with one customer noting it takes less than 5 minutes to swap out. They appreciate its appearance, security features, and perfect fit, with one mentioning it’s compatible with Kwikset 888 cylinders. The functionality receives mixed reviews, with some saying it works well while others report it doesn’t perform as expected.