Latchbolt is withdrawn by handle or key from inside, and by key from outside. Bolt can also be double thrown and deadlocked simultaneously by a full 180 degree turn of the key from either side. The latch holdback snib on the case can only be depressed once the bolt has been withdrawn by use of the key.
Supplied c/w 6 pin euro double cylinder, cylinder guard and bolt through security guard, and 250 mm extended strike plate to strengthen the door jamb. Automatically deadlocked when door is in the closed position.