Richelieu 5830180 Angle Metal Shelf Clip | thebuilderssupply.com
Amazon.com: Shelf Clips, Adjustable Supports Clip for 255 Standard Pilaster, Heavy Duty Metal Shelving Brackets Clips for Kitchen Cabinet Bookcase (Silver 28) : Tools & Home Improvement
Shelf Clips, White, Loop Style, Pack of 12 at Lowes.com