Bautec K 11 – allows easy screwing without wall inserts. It is suitable for frames made of wood, plastic, and other materials. The required drill hole diameters are as follows:
-frame: 6.5 mm
-concrete: 6.5 mm
-brick: 6 mm
-autoclaved Aerated Concrete: no drilling required
-frame: 6.5 mm
-concrete: 6.5 mm
-brick: 6 mm
-autoclaved Aerated Concrete: no drilling required