3/4" steel strut and 5mm thick steel bar construction. Tough epoxy coat finish. Recommended fasteners are 3" or longer 5/16" pan head screws mounted onto studs. Attach shelf using #8 or larger rounded-head wood screw. Holds up to 1,200 pounds per pair whe n mounted per manufacturer recommendations. Mounts directly to wall. Less fasteners.
Knape & Vogt L-Bracket, Extra Heavy Duty, Ultimate, Series: 208, 22 in Length, 1-3/16 in Width, 21.4 in Depth, Cold Rolled Steel, Powder Coated, Titanium, 1200 lb Load Capacity, Suitable For Use With: Supporting Countertops, Work surfaces and Shelving, ANSI/BHMA A156.9, 14.2 in Height, For Commercial, Industrial and Retail Applications