Insulation screw Grey

GRÅ Insulation screw is screwed into the insulation using a special bit. This bit is made so that the insulating screw is attached to the bit, which facilitates assembly considerably. The bit fits into a standard screwdriver. The screw is also used to anchor the insulation to the underside of the concrete plate. The screw is not pulled entirely down to the board, leaving 2-3 cm between the screw head and the insulation. The concrete can then enclose the screw plate, thus fixing the insulation against the concrete.