Mounting screw for polystyrene SM-50 (4)

The SM-50 screw-in screws are used to mount various types of light elements with a suitable screw on insulated facades of residential buildings, e.g. information boards, signs, lighting lamps, cameras. Suitability for fixing and evaluation of fixing heavier elements belongs to the installer, because the tearing force is influenced by three basic elements: the density of polystyrene, wind (for elements protruding from the ground and having a large surface) and the weight of the fixed object itself.