Deadbolt Functions:
Single Cylinder (660) - is operated with a key from the exterior and a thumbturn from the interior.
(Sngl. Cyl. - SMT) - Smart Key Cylinder with Bumpguard.
Double Cylinder (665) - is operated with a key from both the exterior and interior.
(Dbl. Cyl. - SMT) - Smart Key Cylinder with Bumpguard.
One Sided Deadbolt (663) - is operated by a thumbturn from the interior. No trim on exterior.
Select preferred finish (4 finishes available) and function (3 functions available) to view detailed product information.
