The panels look great and were easy to assemble (and I only can do easy things) I used them to cover up pool equipment and needed to be able to remove them if required.  I bought two sets and used an electric drill screwdriver to put it together.  I was afraid the anchor spikes were a bit long and might hit a pipe near the equipment so I just set the spike at the length I wanted (about 7 inches) protruding. I just used the screws that were provided and with the electric drillscrewdriver and with a little bit of pressure, the screws went through the metal.