5/16" (8mm) Hole Size Flange Diameter: 20mm Stem Length: 9mm Black Nylon Fender Splash Shield Phillips Screw Type Retainers Compare with: Auveco #17379, Honda # 91512-SM4-003, 91512SM4003, Car Pak # 91-6958, 916958, W&E # 2758, Barnes / Kar # 4428, Crest / Midwest # CRX6986, Disco 1976PK, 1976B, Kent / Lawson # P53834, Winzer # 500.788050, Wurth # 150155596, Kimball / Midwest # 13054