Installed 2 Click bond fasteners. I sanded and prepared the area. The Click bond fasteners had 2 small holes drilled in them and installed in a bed of flox. The Hole is to ensure FLOX flows through the click bond base into the 2 Plys of Bid to ensure the click bond does not rotate when installing the Locking nuts. I also used clear Box Tape on the back of the bracket to ensure it would not stick as the click bond fasteners cured.