Product description: BKS mortise lock prepared for vertical locking into the top frame if used with BKS snap bolt 1795 and tube with locking spring 9037. Features and advantages: Fire rated to DIN 4102. Fully enclosed lock case ‚¬â€œ dirt or other foreign bodies cannot obstruct the easy operation of the lock. Easy assembly due to easily accessible bore for cylinder fixing screw. Various forend types available. Application: Special designs of fire protection doors. Technical description: Profile cylinder lock with latch lever function, also for Swiss-type round cylinder as an option. Fully enclosed, galvanised lock case. Malleable cast iron latch, galvanized. Steel deadbolt, galvanised; 20 mm single throw. Technical data: Follower: Malleable cast iron; 9 mm square Centres: 72 mm Backset: 65, 80 and 100 mm Rear backset: 32,5 mm
