5/16" (8mm) Hole Size Stem Length: 18mm Flange Size: 20mm Black Nylon Inner Fender Phillips Screw Type Retainers Compare with: Nissan # 63844-01A00 , 6384401A00, Auveco # 16858, Disco # 5900PK, 5900B, Car-Pak # 83-5742, 835742, Crest / Midwest # CRX473, CRX4730, Kent / Lawson # P28286, Wurth # 150159598, Kimball / Midwest # 10725