These brackets are designed to be a robust, yet visually appealing alternative to other heavy-duty adjustable shelving systems. All sizes & feature two mounting holes in the bottom of each bracket to allow shelves to be fastened to the brackets utilizing screws. Applications include schools, hospitals, offices, libraries, retail stores, businesses, home office, garage, living areas, pantries & storage. 82 Series Standards & 182 Series Brackets offer smooth & rounded corners, giving a softer and less intrusive appearance without compromising the strength needed to hold heavy loads. The recessed groove design provides a streamlined surface where the bracket meets the standard. Double-lug bracket design helps prevent shelves & contents from falling if bumped.