The Kwikset 663-5V1 is a no-key exterior deadbolt designed to provide enhanced security by locking and unlocking only from the interior using a thumb turn. This Grade 3 BHMA certified lock features an updated chassis, a Microban-protected finish, and comes with an adjustable 2-3/8" or 2-3/4" latch to fit standard doors between 1-3/8" and 1-3/4" thick. Easy DIY installation is facilitated with all necessary screws, an Allen wrench, and clear instructions, requiring just a screwdriver. It is the ideal choice for securing external doors where keyless operation is preferred, such as side or back entryways, garage-to-house doors, and rental property egress doors.

Attribute	Details
Brand	Kwikset
Model Number	663-5V1
Type	Exterior Door Deadbolt
Ports/Size/Key Spec	One-Sided Turn (No External Key), 2-3/8" Backset
Material	Metal, with Microban Finish Protection
Connection	Standard Door Bore
Finish/Color	Antique Brass
Shape/Style	Traditional (600 Series)
Dimensions	Assembled: 2.5"H x 2.5"W, Cross Bore: 2-1/8"
Application	Exterior Door Security (Keyless Entry)
Installation	DIY, Fits Standard Prepped Doors
Package Quantity	1 Deadbolt Lock Set
Other Info	Grade 3 BHMA Certified, ADA Compliant