Drill the 12mm holes in the wall, using the 12mm masonry drill. The centres of the holes will form two 100mm squares. Attach each hole of the console using the 8mm bolt with M8 steel washer. Tighten down firmly. Only now tighten down the M8 bolts holding the consoles together firmly.
Ground the console using the lightning rod clamps and lightning rod conductor to a suitable lightning conductor or grounded roof tin nearby. Check with a multimeter that the connection has less than 0.2 Ohm resistance.