Stainless Steel MaterialOur Shelf Bracket is made of high quality stainless steel material, stainless steel is hard and strong, not easy to break or deform, so it can firmly and stably fix your shelves, Shelf Bracket surface is smooth without burrs, rust-free, non-oxidizing and durable. 90 Right Angle DesignOur 5mm Shelf Bracket adopts L-shaped design, the L-shaped shelf design enhances its load-bearing capacity, the L-shaped shape extends to both sides of the shelf, which can be firmly inserted into the wall and keep the shelf The board is stable. Hand-polished 90-degree corner clips, countersunk screw holes, and the screws are flush with the surface of the bracket, which is more beautiful and firm. Fixing Bracket Size: Package includes: 12 sets of Metal Corner Braces + 48 screws, size 40 x 40 x 18 mm, thickness 3 mm, strong bearing capacity. Diameter 5 mm x 4 holes. Metal Corner Braces have a large bearing capacity, long service life, and can withstand daily wear and tear. Easy Installation: The screw holes are recessed so that the screws are flush with the surface of the bracket. Metal Corner Braces have a thickness of 3 mm and are used to reinforce right-angle joints. All you have to do is drill holes, install screws, and tighten with a screwdriver. Simple, lightweight, and fast. They are perfect for your DIY projects. Wide Applications Shelf Brackets Shelf brackets are suitable for stabilizing wooden doors, bed frames, boxes, furniture, cabinet doors, dressers, metal L-shaped corner clips for building a frame, as an angle, it is perfectly connected with shelves, potted plants, tables and helps to safely build or repair installed furniture.