The 855 series features Key Wind operation which allows the door to be locked and unlocked by 2 turns of the key. The latch is retracted by the key or the handle. Type 3 refers to 2 roller, 2 hook locks.

Operation: Key wind.

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

Specifications

• Centres: 92mm
• Case height: 212mm
• Case depth: Backset + 18mm
• Overall length: 2170
• Distance between inner hooks: 1491mm
• Distance between middle rollers: 700mm