Yale No.1 deadlocking nightlatch PB (60mm)

Particularily suited to glass panel doors, the Yale No1 nightlatch is automatically deadlocked when the door is in the closed position. The latchbolt is withdrawn by handle from the inside and key outside. Handle can be deadlocked by key prior to closing the door and entry can always be gained by key from the outside. Bolt can be held back by slide button (snib) or locked in either the withdrawn or extended position by a turn of the key in the middle. Supplied with 3 keys.