Avery Dennison Round Hole Fir Tree Automotive Fasteners keep wires, cables, and components quiet and secure. These fasteners are made from high-performance polymers to withstand extreme heat, weather, and vibration. The fir tree design ensures firm mounting in punched or threaded holes, while the integrated disk and fluted edges reduce noise and enhance installation speed. These fasteners are available for hole diameters from 6.3mm to 11.5mm and panel thicknesses from 0.6mm to 8.5mm, including compatibility with M6 to M10 threaded holes. Typical applications include automotive wire harness fastening, panel mounting, vibration control, and OEM-compliant installations.