15/32" (12mm) Hole Size Head Size: 20mm x 25mm Stem Length: 13mm Black Nylon Hood Insulation Retainers Compare with: Auveco #21145, V.W. # 1H5-863-849-01C, 1H586384901C, Disco # 10944PK, 10944B, Clip Lizard # 10022