Cylinder mortise lock with an automatically deadlocking latchbolt for interior doors. Deadlocking is controlled by a snib in the front plate. Snib position: UP = Deadlocking, latchbolt protrudes 20 mm. The lock can be opened only with a key or a thumbturn. DOWN = Latchbolt protrudes 14 mm. Lock can also be opened with lever handles. Striker plate: 0043, 0045, 0053, 0055, 0068, 0068B Cylinder ABLOY® C, N, T, U Mortise standard SFS 5210, SS 81 73 82