Materials Cover plate in die-cast UNI EN 1706 AC - 46100 DF aluminium alloy. Bracket fastening screws made of AISI 304 stainless steel. Fixing brackets in die-cast UNI EN 1706 AC - 46100 DF with non-tarnishing spring type turning system. Seal in flexible polyvinyl chloride (PVC). Characteristics For 45 x 186 hatches with semi-rounded ends. Used along with MGV series junction boxes with double insulation. Bracket fastening screws with special hemispherical triangular shaped heads and semi-rounded sides (trademark application pending), and tightened with the special supplied key. Protection degree IP 54 in compliance with CEI EN 60529, IK 10 according to CEI EN 62262.