23/64" (9mm) Hole Size Stem Length: 11mm Head Size: 12mm x 20mm Gray Nylon With Sealer Rocker Moulding Retainers Compare with: Auveco #21374, Car Pak # 99-8838, 998838, G.M. # 11571175, Car Pak # 99-8838, 998838, Disco # 12040PK, 12040B, Crest / Midwest # CRX21422, W&E # 3313, Kent / Lawson # P85430, Winzer # 502.8838, S&R # 421401, Kimball / Midwest # 13557