Hole Size: 23/64" (9 mm) Top Head Diameter: 12.5 mm x 23 mm Stem Length: 11 mm Tail Gate Retainers White Nylon Compare with: G.M. # 11611626, Auveco # 21739, Clip Lizard # 270170, Disco # 18263PK, 18263B, Kimball / Midwest # 13913, Kent / Lawson # 1404758, Winzer # 502.8658