Sik Bolt serves two functions as concerns security. First, Sik Bolt replaces the locking handle. Second, it serves as an additional latch. This security system is also distinguished by superbly straightforward installation.

Here too, effective istallation requires only a cup hole in both frame and casement. Sik Bolt is operated with the help of a small lever on the casement surface. Using an outlet in the fittings and gears—easily made using

a standard tool—Sik Bolt can be installed quickly and effectively. Sik Bolt enjoys excellent security features as regards both retro-fitting and window construction.