1/4" (6mm) Hole Size Stem Length: 12mm Flange Diameter: 18mm Black Nylon Cowl Phillips Screw Type Retainers Compare With: Honda # 91524-SE0-003, 91524SE0003, Auveco # 17081, Disco # 12899PK, 12899B, Car-Pak # 90-6749, Crest Midwest # CRX4134, Disco # 12899PK, 12899B, Kent / Lawson # P52553, Wurth # 150155255, Kimball / Midwest # 13051