Kwikset's largest-selling deadbolt in America, the 660 Series deadbolt provides tough, effective protection at an affordable price.
- For use on exterior doors where keyed entry and security is needed
- Deadbolt operated by key outside and thumb turn inside
- Deadbolt latch has two interchangeable faceplates - round corner and square corner
- Locking mechanism functions with turn-piece on the interior of the lock
- Easily installs in minutes with just a screwdriver
- Microban anti-microbial product protection keeps door hardware 99.9% cleaner than unprotected surfaces