Materials Bracket fastening screws made of AISI 304 stainless steel. Rust prevention in the part where the bracket fastening screws turns, with thermoplastic sleeve. Polyurethane foam seal able to withstand the weather conditions and UV solar radiation. Characteristics Bracket fastening screws featuring patented semispherical head with triangular impression and halfrounded side operated with the special key provided. Protection degree IP 54 in compliance with CEI EN 60529, IK 10 according to CEI EN 62262.