This unit comes complete with a cleat cover box mounted onto a 20" high, 12" wide, 1/8" thick aluminum plate. Designed to be mounted using thru wall bolts or expansion shields utilizing 3/8" diameter threaded rod. Expansion shields are supplied as standard; if thru wall bolts are required please specify length. All nuts, washers & lock washers are supplied for a complete installation. All Wall Mounted Cleat Boxes are made to order. Please allow 1 - 2 weeks after approval for shipping.