The “BSM” (Manual Lock Unit) is compatible with all interior and exterior cladding.
There is also an automatic version, the BSA, for use exclusively with windows.
Equipped with a patented, invisible attachment system, fitting is quick and easy using standard tools.
It functions without cladding or handles, allowing instant worksite closing.
Equipped with an anti-mishandling system and a self-adjusting bolt, it can be converted into a multi-point lock by adding a 2 or 3-point kit.

The Manual Lock Unit in pictures