Plastic shelf support with 5mm peg.
Low Profile Shelf Support With 5mm Round Peg *Replacement for Part #1815
Locking Shelf Support With 1/4″ Peg For 1/2″ Thick Shelf
Locking Shelf Support With Dual 5mm Pegs For 3/4″ Thick Shelf
Plastic shelf support with 5mm peg designed to secure 3/4″ thick shelf from sliding forward. Reversible