Two suggestions. The best way to hang your CI ln Sheet Rock walls is to use Chair Rail molding (1-1/2 or 2" wide), screw the molding to the studs in the wall, paint as desired, then drive in nails or srews to hang your iron as desired
The other, go to Sam's Club and purchase some Stainless Steel shelves and maybe Lowes/Home Depot and buy some 60# "S" hooks, assemble the shelves, then hang away. You can hang up to 21 skillets on the bottome of one shelve.