11/32" (8.70mm) Hole Size Stem Length: 18mm Top Head Diameter: 13mm Yellow Nylon With Sealer Door Trim Panel Retainers Compare With: G.M. # 22600612, 22651066, Auveco # 18930, Disco # 12105PK, 12105B, Crest Midwest # CRX5194, Car-Pak # 96-7586, Winzer # 503.1186, Wurth # 150153163, Kimball / Midwest # 10769