1/2" Low Profile Pyramid Top Hole Plugs Fits a 3/8" Hole (24, Walnut) Who says you can't fit a square peg into a round hole? No need to chisel out a square hole! These plugs fit a standard 3/8 Just glue, line up and press into place. It's that easy! For that turn of the century Arts & Crafts look. Made from solid hardwood in the USA.