Flange. This clamp is used on structures where positional fixing is required. Do not use as a base flange to support guard railings or similar systems.
Another big plus of the black coating is, that the color gets into the material really deeply, which prevents the connectors from corroding too quickly. The paintwork is not resistant to UV radiation and is therefore not suitable for outdoor use. The tubefittings are equipped with black colored stainless steel adjusting screws with cutting edge.