This 9 galvanised wall bracket for mounting aerials and small satellite dishes can take masts up to 2 in diameter and at a recommended length of 8 galvanised for all weather protection stand off 65 165mm from wall requires 2 x u bolts not supplied 40 x 40 x 3mm hd angle iron arms and backs plus mid support of 25 x 5mm solid bar for maximum torsion strength one piece steel bracket galvanised finish