5/16" (8mm) Hole Size Flange Diameter: 20mm Stem Length: 15mm Black Nylon Front & Rear Bumper Cover Push-Type Retainers Compare with: Auveco #17347, Nissan # 01553-06721, 0155306721, Car Pak # 91-6918, 916918, W&E # 2599, Barnes / Kar # 4901, Clip Lizard # 10621, Crest / Midwest # CRX4434, Disco # 1949PK, 1949B, Kent / Lawson # P52221, Winzer # 500.788099, Wurth # 150155595, Kimball / Midwest # 13127