Durable and Sturdy: The bracket is made of high-quality stainless steel, durable, strong, sturdy, waterproof, and rustproof. Hand-polished stainless steel color, modern look, and never worry about daily scratches, corrosion, and discoloration. Safety Design: Countersunk mounting screw hole design makes the screws invisible on the outside, protects the screws, and makes the appearance smoother; The curved design makes the edge safe and protects your hand from being scratched. Wide Application: Works great for bookshelves, potted plants, stereos, tables, desks; reinforce a broom closet door, flat surface joints, seams, and cracks. Help strengthen your bed frame, drawer, construction, or installed furniture repair. Easy to Install: The screw holes are countersunk so that the screws are flush with the surface of the brackets. Super handy for general DIY jobs around the house. L-shaped steel corner brace to reinforce right-angle corner joints. Quantity and Size: Set of 20 corner brackets + 80 screws, measuring 40x40x18mm. Mounting screw hole diameter: 5mm; Number of holes: 4 holes. Makes them ideal for a range of applications L-shaped Right Angle Brackets - Made of high-quality stainless steel, which is hard and durable, corrosion and rust resistant. - Specially designed with a 90-degree right angle, widely used in household and industrial applications. - Perfect for making furniture, kitchen cabinets, shelves, and bookshelves and many other items where elements are placed at right angles. - Build and repair units made of chipboard, furniture, wooden items made at home and more with our universal corner brackets - Thin and smooth edges make it safer and better protect your hands. Specifications: Material: Stainless Steel Bracket Size: 40x40x18mm Installation Method: Screw Fixing Number of Holes: 4 holes Color: Black Package Includes: 20 pcs * Corner Braces 80 pcs * Screws Warm Tips: 1) Please allow a slight dimension difference due to different manual measurements. 2) Screws are sharp and small, please keep them out of reach of children to avoid accidental injury.