The 2 roller, 2 mushroom GU lock features rollers for compression and mushrooms for extra security.The 28mm backset version features a black plastic gearbox.
Operation: Lift lever.
Latch reversal: Push a flat bladed screwdriver into the small rectangular slot above spindle and pull out latch at same time. reverse and reinsert.
- Centres: 92mm
- Case height: 195mm
- Case depth: 35mm
- Overall length: 2285mm
- Distance between mushrooms : 1610mm
- Distance between inner rollers: 670mm
- Bottom deadbolt to spindle : 660mm