SUNDELY (2 set) Solar Panel Z Bracket Mount Mounting Set RV Boat Off Grid with Bolts Flat Washers Buts (2 set) Solar Panel Z Bracket Mount Mounting Set RV Boat Off Grid with Bolts Flat Washers Buts 8 pieces of anodized aluminum Z-Brackets 8 pieces of 1/4" diameter stainless steel bolts (1/2" long) 8 pieces of stainless steel flat washers 8 pieces of k-lock stainless steel nuts (will not vibrate loose)