Knape & Vogt 208 WH 550 Shelf L-Bracket, 21.4 in L, 14.2 in H, Steel

3/4 in steel strut and 5 mm thick steel bar construction. Tough epoxy coat finish. Recommended fasteners are 3 in or longer 5/16 in pan head screws mounted onto studs. Attach shelf using #8 or larger rounded-head wood screw. Holds up to 1200 lb per pair when mounted per manufacturer recommendations. Mounts directly to wall. Less fasteners.