Rok Hardware 5mm Shelf Pins / Pegs, Flat Spoon Style with Stop, Nickel, 100 Pack 5mm Nickel Shelf Pins are used to support a shelf in place on any project with 5mm shelf holes. The shelf support pegs fit 5mm shelf holes on cabinets, entertainment centers, bookcases, and more. Shelf Pins install easily by hand! Nickel finish for a stylish look. Additional sizes and colors available