Double cylinder lock case with an automatically deadlocking hookbolt for folding and sliding doors.
The deadlocking is controlled by the snib in the forend.
Snib position:
UP = Deadlocking, when the door is closed.
The lock can be opened with a key or thumbturn.
DOWN = Hookbolt is retained in the lock case.
Striker plate:
4662
Cylinder:
ABLOY. C, N, T, U