17/64" (6.80mm) Hole Size Stem Length: 15mm Head Diameter: 20mm Black Nylon Trim Panel Retainers Compare With: Nissan # 01553-0052U, 015530052U, Auveco # 20671, Disco # 12508PK, 12508B, Lawson # KT13604, Crest Midwest # CRX18782, Car-Pak # 99-8435, Winzer # 501.3411