Single Cylinder (800, 818, F60) - is operated with a key from the exterior and a thumbturn from the interior.
Double Cylinder (801, F62) - is operated with a key from both the exterior and interior.
Dummy Cylinder (802, 819, F93) - No operation. For inactive leaf of double doors.
Select preferred style (9 styles available) and function (3 functions available) to view detailed product information.