25/64" (10mm) Hole Size Stem Length: 23mm Top Head Diameter: 31.5mm Black Nylon Tail Light Push Type Retainers Compare with: Auveco #21348, Chrysler # 6508643-AA, 6508643AA, Crest / Midwest # CRX25715, Disco # 11993PK, 11993B, Kent / Lawson # P85397, Winzer # 502.8346, Wurth # 150121348, Kimball / Midwest # 13883