5/16" (8mm) Hole Size Flange Diameter: 20mm Stem Length: 9mm Black Nylon Push-Type Retainers Compare with: Auveco #19274, Nissan # 01553-09321, 0155309321, 01553-0932, 015530932, Chry# MR3289541, Car Pak # 98-7854, 987854, W&E # 2959, Barnes / Kar # 98-7854, Crest / Midwest # CRX12766, Disco # 9540PK, 9540B, Kent / Lawson # KT11397, Winzer # 501.3403, 501.3403.1, Wurth # 150155507