The joint use of the _av_armed key and the av_tt_FR bracket guarantees the highest class of fire resistance for ventilated facades: B S1 D0.
Anchoring element with a metallic core and a polymer composite shell. The need to respond to particular critical situations of fire load makes this key the best anchoring element. It is recommended for areas adjacent to escape routes and for elements of great size. The maximum load of a single element is 50 kg.