Series 21 Product description: BKS locks with deadbolting latches for automatic locking: ‚¬â€œ Automatic deadbolt: The automatic deadbolt automatically throws 20 mm and together with the deadbolting latch provides security due to perfect locking. ‚¬â€œ Deadbolting latch: Serving as additional locking, the dead- bolting latch guarantees optimum security. An integrated releasing device causes the latch to throw automatically from 12 to 20 mm. Also available with manual deadbolt. With this variant, the turn handle is switched to idle position. Features and advantages: Automatic locking of deadbolting latch and automatic deadbolt due to integrated releasing device, i.e. an auxiliary latch is not required. Manual locking of the door is no longer necessary. Certified to VdS (German association of non-life insureres): security class B. 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. Easy assembly due to easily accessible bore for cylinder fixing screw. Various forend types. Application: House entrance and flat entrance doors. Technical description: Profile cylinder lock with latch lever function, also for Swiss-type round cylinders as an option. Fully enclosed, galvanised lock case. Installation dimensions to DIN 18251. Holes around follower and cylinder bores for through-fixing of door furniture with connecting screws up to M 8 (with rosettes up to M 6). With bushes protecting against steel swarf. Technical data: Follower: steel; 8 or 10 mm square Centres: 72 mm or 92 mm Backset: 55, 60, 65, 70, 80 and 100 mm Rear backset: 28 mm
