to DIN 18251 ‚¬â€œ class 2 Features and advantages: Through-fixing of standard door fittings such as escutcheons or short backplate sets possible. Fully enclosed lock case ‚¬â€œ dirt or other foreign bodies cannot obstruct the easy operation of the lock. Various forend types available. Application: Light interior doors, e.g. in private housing. Technical description: Profile cylinder lock with latch lever function. Prepared for the installation of locking cylinders to DIN 18252. Zinc diecasting latch and deadbolt. 2 x 10 mm double throw deadbolt. Technical data: Follower: plastic; 8 mm square Centres: 72 mm Backset: 55 mm Rear backset: 25 mm