Panel and Enclosure Bushings: Type - Hole Bushing, Standard; Mtg Hole Dia.- in - 0.375 in; Mtg Hole Dia.- mm - 9.5 mm; Bushing Inside Dia.- in - 0.281"; Bushing Inside Dia.- mm - 7.1 mm; Max. Panel Thickness - 0.170" (4.3 mm); Height - overall thickness - 0.406" (10.3 mm); Head Diameter - 0.468" (11.9 mm); Installation - Push-In One-Piece; Material - Nylon; Color-Finish - Black; Temperature Rating - 105 deg C (221 deg F) Max.; Material Specification - Nylon Type 6/6 UL Rated 94V-2; Listing Description - SB 375-281; Manufacturer Series - Heyco Snap Bushing