Kwikset 663 Deadbolt Unkeyed Deadbolt Lock, Satin Nickel Round Interior Turn Piece for Front Entry Door, with Latch and Adapter, No Exterior Assembly

Product Description 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. From the Manufacturer As the industry leader, Kwikset has provided trusted security for over 60 years and has become synonymous with security, peace of mind, style and innovation. The largest-selling deadbolt in America, the 600 series provides tough, effective protection at an affordable price. The crisp, clean appearance of the Satin Nickel finish adds to the overall look of the product and brings a modern feel. This single cylinder, single-sided deadbolt can be used along with a keyed knob or lever for added security.

• NO KEY DEADBOLT: For use on exterior doors that require a high level of security, can only be locked and unlocked from the interior using the thumb turn piece
• 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, adjustable latch backset from 2-3/8" to 2-3/4" with just a twist during installation
• BOX INCLUDES: Interior Turn Piece, Adjustable Latch, Screws, Strike Plate, Adapter, Installation Hardware, Install Guide
• CERTIFIED TRUSTED QUALITY: Security, Durability and Finish are Grade 3 BHMA certified, designed for reliable protection, providing peace of mind at home
• MICROBAN PROTECTION: Kwikset’s door hardware is treated with Microban, this offers powerful product protection that is 99.9% cleaner than an unprotected surface
• WARRANTY PROTECTION: Our products are backed by a lifetime mechanical and finish warranty with great customer service, see Kwikset warranty for more details
• TRADITIONAL DESIGN: Available in a classic, traditional door hardware style with simple, unique details to match your home décor