Characteristics Can be applied to the bottom of the enclosure using special threaded inserts with M6x20 stud bolts or in conjunction with switchgear risers or racks using the dedicated fixing brackets (MT). For the choice of the mounting plates, refer to the "useful height of the single compartment" and to the series of enclosures (Grafi5-Grafi-7-Grafi9-Grafi12). Materials Made of the following materials: Bakelite (PB) 5mm thick.