Although this thingi has screw holes , I used Scotch Double Sided Outdoor Mounting Tape (15lb) in adhering it to my garage wall. To remove it without damage you can use a couple of squirts of Goo-Gone behind it and the plate will pop right off the wall.( I had no screws available at time of printing this.)
Works great ! I even have a heavier Cors Scout Coil on my detector.
-This wall mount also fits the Ace series of Garrett detectors.