1/4" (6.3mm) Hole Size Head Diameter: 25.4mm Stem Length: 16mm Black Nylon Hood Insulation Retainers Compare with: Auveco #19541, Chrysler # 6504135, Car Pak # 98-7814, 987814, W&E # 3058, Barnes / Kar # 98-7814, CP98-7814, CP987814, Crest / Midwest # CRX14980, Disco # 10391, Winzer # 502.5129, Wurth # 150157062, Kimball / Midwest # 12149