High Quality Push Mount White Cable Ties, 190mm x 4.8mm (100pack). These are commonly used in automotive applications for attaching looms to a hole in the panels. These would also suit any thin panels with the correct size holes in it.
Specifications:
Colour: White/Natural
Length: 190mm
Width: 4.8mm
Hole Diameter: 6.4mm
Panel Thickness: 3.2mm
Max Bundle Diameter: 45mm