7/16” (11mm) Hole Size Top Head Size: 19/32” x 25/32” Stem Length: 9/16” Yellow Nylon With Sealer Rear Wheel Opening Mloulding Clips Compare with: Auveco #19379, G.M. # 10297371, Car Pak # 99-8230, 998230, Barnes / Kar # CP99-8230, CP998230, Crest / Midwest # CRX12872, Sisco # 9990PK, 9990B, Winzer # 502.8230, S&R # 421390