Kwikset 660 Deadbolt Lock, Matte Black Round Exterior Keyed Front Entry Door, Pick Resistant SmartKey Rekey Security, Single Cylinder Dead Bolt

The largest-selling deadbolt in The united states, 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. Safe 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. Make a choice from quite a lot 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 Safe 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 the usage of a key. Recommended for exterior-facing doors
SMARTKEY SECURITY: Kwikset’s SmartKey Security technology protects against advanced break-in techniques and lets you re-key your lock yourself in seconds
EASY INSTALL: Do it yourself, installs in minutes with just a screwdriver, if door is missing a bottom handleset fortify hole you are going to need a drill, 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″ by sliding the adjustment pin all the way through installation
ADJUSTABLE LATCH: With just a twist all the way through installation, the latch backset can be adjusted to either 2-3/8″ or 2-3/4″ as a way 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