A 4 hook, 4 roller lock that was used predominately on PVCu doors made by Coldseal until the mid 2000?s.
- Overall length - 1951mm
- Distance between outer rollers - 1444mm
- Distance between inner rollers - 469mm
- Distance between inner hooks - 594mm
- Undo the screw in the side of the lock case to remove the latch, reverse, reinsert and replace the screw.