Panel and Enclosure Grommets: Type - Grommet, Standard; Mtg Hole Dia.- in - 0.490 in; Mtg Hole Dia.- mm - 12.5 mm; Grommet Inside Dia.- in - 0.200"; Grommet Inside Dia.- mm - 5.0 mm; Max. Panel Thickness - 0.080" (2.0 mm); Height - overall thickness - 0.690" (17.5 mm); Head Diameter - 0.790" (20.0 mm); Installation - Push-In One-Piece; Material - Rubber; Color-Finish - Black; Material Specification - EPDM; Manufacturer Series - LTG