23/64” (9mm) Hole Size Top Head Size: 12mm x 20mm Stem Length: 15mm Gray Nylon With Sealer Windshield Pillar Moulding Clips Compare with: Auveco #20885, G.M. # 15288146, # 15893516, Car Pak # 99-8573, 998573, Barnes / Kar # B10573, Crest / Midwest # CRX19658, Disco # 10481PK, 10481B, Kent / Lawson # KT13771, KT14309, Winzer # 502.3526, S&R # 421399