3/8" Mahogany Wood Deck Plugs are straight sided wood plugs that fit 3/8" holes on boat decks, outdoor furniture, wood decks and other projects. 3/8" Mahogany Wood Deck Plugs have flat top, straight sides and slight camfer on bottom for easy of installation. Side grain (face grain) helps repel water. All deck plugs are 3/8" long. Simply tap in with a rubber mallet or similar tool. No glue is necessary, but for wet environments a waterproof glue like an epoxy or Gorrilla glue is recommended to improve seal. 3/8" Mahogany Wood Deck Plugs can be sanded, stained and varnished.