Ingenious 3 Hook 4 Roller

Distance between inner rollers: 693mm Distance between outer rollers: 1620mm – Serrations to allow for shootbolt extensions – Up to 4mm of compression on rollers – Dual spindle gearbox Designed with the same benefits and locking points as the single residential door locks, the French master door lock continues to offer security and reliability. This Professional Master lock features 3 hooks and 4 rollers, reversible latch and top/bottom serrations to allow for shootbolt extensions to increase security. Technical Details: Locking Points: 3 Hooks 4 Rollers Faceplate: 16mm Backset: 35mm or 45mm PZ: 92/62mm Spindle size: 8mm