Panel and Enclosure Hole Plugs: Type - Hole Plug; Mtg Hole Dia.- in - 0.500 in; Mtg Hole Dia.- mm - 12.7 mm; Max. Panel Thickness - 0.125" (3.2 mm); Plug Height - Length - 0.406" (10.3 mm); Plug Head Dia. - 0.578" (14.7 mm); Installation - Push-In; Material - Nylon; Color-Finish - Black; Material Specification - Nylon Type 6/6