Deadbolt Functions:
Single Cylinder (993, 980, 780, 660, 816, B60, B560, B250) - is operated with a key from the exterior and a thumbturn from the interior.
Double Cylinder (994, 985, 785, 665, B62, B562, B252) - is operated with a key from both the exterior and interior.
One-Sided with Plate (667, B81) - is operated by thumbturn on interior. Blank plate on exterior side.
One-Sided (663, B80) - is operated by thumbturn on interior. No trim on exterior side.
Exterior Plate (664) - converts a 663 to 667 when door is bored through.
Select preferred style and function to view detailed product information.