23/64" (9mm) Hole Size Stem Length: 14mm Top Head Diameter: 9mm x 20mm Yellow Nylon With Sealer Rocker Moulding Clips Compare with: G.M. # 11546635, 11612122, Disco # 12908PK, 12908B, Auveco # 22036, Crest / Midwest # CRX26662, Car-Par # 99-9114, 999114, Kent / Lawson # 1446666