This Yale modern deadlocking nightlatch comes supplied with a 5 pin rim cylinder and 3 keys or without a rim cylinder for case only variation.

Can be used on outward opening doors when fitted with long or short tongue reverse strike plates (sold separately).

With key operation from the outside and a lever handle operation from the inside, this nightlatch also has a snib function can hold the latch in a locked or withdrawn position

CylinderThis is our last remaining stock of the Yale 1109 rim cylinder before Yale updated the key profile for the newer version. You cannot key alike the old profile with the new one so if you have old profile stock that you need to key alike, hurry because once this stock goes, it's gone. 

These rim cylinders have the same spec as the new 1109 rim cylinder but are the old key section.

To tell the difference between the new 1109 design and the old 1109 design: Just above the keyhole of the new style cylinder there is a groove and the keyway is slightly protruded.