Through-wall screws/bolts increase the stability and durability of the fixation to secure the core drilling machine to a hollow brick/brick/plasterboard wall while avoiding damage to the drilling machine and the wall.
Due to hollow brick/brick/plasterboard walls are more fragile than concrete walls. Using traditional expansion screws may not provide enough stability, easy to loosen or fall off. But the through-wall screw can generate greater tensile and shear resistance at the fixed point of the drilling machine, so that the drilling machine can be more firmly fixed on the wall.
