1/4" (6.4mm) Hole Size Head Diameter: 1 3/4" Stem Length: 3/4" Black Nylon Hood Insulation Retainers Compare with: Auveco #14163, Ford # 388908-S, 388908S, Car Pak # 79-5100, 795100, W&E #2425, Barnes / Kar # 754, Crest / Midwest # CRX4680, Disco # 1573PK, 1573B, Kent / Lawson # P58190, Winzer # 502.4018, Wurth # 150157011, S&R # 415228, Kimball / Midwest # 10605