I brackets for wood material: : Stainless steel, Main Color: Silver Tone. Brushed Finish, No rust and corrosion Design Features: Featured with L Shape Flat Angle Bracket design and easy installation and easy repair of general household items Easy Installation: The package includes 20 pack flat brackets and 80 pack screws for different needs. You just need to put the corner bracket on the wooden object that needs to be repaired and fastened, and then use a screwdriver to tighten the screws Mounting Hole Diameter: 4.0 mm / 0.16 inch; Size: 40 mm x 40 mm / 1.57 x 1.57 inch; Thickness : 1 mm / 0.04 inch Wide application: Work perfectly for joint fastener, shelf support for desk edge; reinforcing a broom closet door, flat surface joints, wood beam, box, seams and cracks. Help sturdy up your bedframe, box, chest, and furniture construction or repair, Weight: 0.551155655 pounds, Manufacturer: PXYELEC