Hole Size: 3/8" (9mm) Stem Length: 13mm Top Head Size: 11 x 12mm Bottom Head Size: 15 x 19mm White Nylon With Sealer Body Moulding Retainer Compare with: Citroen & Peugeot # 856543 Chrysler # 68093998-AA Fiat # 71728806, Auveco # 22432, Disco # 17943PK, Disco # 17943B