Usage Tips:VALUE PACK Include 40PCS black L bracket corner brace and 80PCS screws, all screws you needed to install the brace are included. The black corner bracket size: 20x20x16mm/0.79x0.79x0.63 inch, hole dia: 5mm/0.19inch. Good for quick DIY projects. STRONGER & DURABLE Our corner braces are made of high-quality materials with anti-rust coating. The black finish is smooth and durable and has a long service life. The bracket is very beefy with nice countersunk holes. You just need to drill the hole and install the screw, use the screwdriver to tighten the screw on it. The screws are very sharp and self drill in to wood. WIDELY USED Our right angle brackets are a perfect size to reinforce furniture like bookcases, chair, table, bed, cupboard, drawers, book shelves, cabinet, wood frame, etc. The corner brackets for support in corners or projects require a 90 degree support. 1.Designed with 90-degree L shape, perfectly fits with of furniture. 2.Sturdy and durable, providing high level of reinforcement or serve as a connector for shelves fastening. 3.Easy installed by yourself, matching with different kind of interior or exterior design. Specifications: Material: stainless steel Brace corner size: 20 x 20 x 16mm/0.79 x 0.79 x 0.63inch Hole size: 0.2-in-dia. Hole-to-hole spacing: 0.7in Thickness: 2/25in Screw length: 5/8in Screw head: 1/4-in-dia Color: Black Please Notice: Small and pointy items, please keep them from children. Package Contents: 40PCS Corner Braces 80PCS Screws Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.