1701030- 18" x 18" Welded Aluminum Truck Box Brackets- Features lightweight and corrosion-resistant aluminum construction, including strong, narrow 1/4 in. formed aluminum angles and mounting brackets with welded angle braces to maintain their shape.
 
1701011B- 18" x 24" Bolted Black Formed Steel Mounting Brackets- Constructed from formed 3-inch steel with a corrosion-resistant black powder-coated finish, these brackets are sold in boxed pairs with a universal hole pattern for easier installation and come in welded or bolt-on brace options, making them strong for securing thick gauge steel and stainless steel underbody truck boxes.
 
1701015- 24" x 24" Welded Black Structural Steel Mounting Brackets- These durable, corrosion-resistant black powder-coated brackets are made in the USA from formed 3 inch steel, featuring a universal hole pattern for easy installation, and are conveniently sold in boxed pairs with a choice of welded or bolt-on braces, making them strong enough to secure thick gauge steel and stainless steel underbody truck boxes.