Hole Size: 5/16" (8mm) Stem Length: 13mm Flange Diameter: 20mm Black Nylon Bumper, Engine Cover, Fender & Quarter Panel Push Type Retainers Compare with: Mazda # B45A-56-146A Toyota # 90118-WB048, Auveco # 22424, Clip Lizard # 101-156, Disco # 18234PK, Disco # 18234B, Crest # CRX30354, Winzer # 500.8594, Kent / Lawson # 1541582, # 1573334, Wurth # 150122554