They get old and the screws no longer work properly.
20PCS Heavy Duty Corner Braces L Shape Brackets 30x30x30mm, 90 Degree Joint Right Angle L Bracket for Furniture Wood Cabinets Shelves,Package Include Screws
20pcs Heavy Duty Right Angle Brackets Stainless Steel Corner Braces Shelf Metal
20Pcs Heavy Duty Right Angle Brackets Stainless Steel Shelf Corner Braces Metal
20Pcs Heavy Duty Right Angle Brackets Stainless Steel Corner Braces Shelf Metal
5pcs/10pcs/20pcs Heavy-duty stainless-steel Shelf Support Angle L Shape Bracket
Heavy Duty Corner Brackets: Heavy Duty Right Angle Brackets KP2 105x105x90x2.5mm
