Lock case with an automatically deadlocking hookbolt for folding and sliding doors. The deadlocking is controlled by a snib in the forend. Snib position: UP = Deadlocking, when the door is closed. The lock can be opened with a key or a thumbturn. DOWN = Hookbolt is retained inside the lock case. Striker plate 4662 Cylinder ABLOY® C, N, T, U Mortise standard SFS 5209