Hole Size: 7/16" (11mm) Stem Length: 9mm Top Head Size: 10 x 15mm Bottom Head Size:18mm Gray Nylon With Sealer Stone Guard Moulding Retainers Compare with: Mazda # KD53-51-SJ3A, Auveco # 22520, Clip Lizard # 270662, Disco # 18104PK, Disco # 18104B, Winzer # 500.8591, Kent / Lawson # 1561953, Wurth # 150122520