This Winkhaus overnight lock secures properties overnight while the replacement multipoint lock is acquired.

Operation: 1605760 – 35mm – Lift Lever or Split Spindle

Operation: 1607720 – 45mm – Lift Lever

Latch reversal: Undo the screw in the side of the lock case adjacent to the latch. Remove the latch, reverse, reinsert and replace the screw.

Nightlatch reversal: The small rectangular slot adjacent to the side of the spindle hole contains a black roll pin. Insert a flat-bladed screwdriver and roll the pin to the opposite side to reverse function.