Spice shelf (8 spice)

thingiverse

For my new kitchen design, I created a spice rack to install inside the cupboard door. It's specifically designed for spice cans with a diameter of less than 43mm and will be secured in place using installation adhesive. I printed the rack in two separate parts, then bonded them together and "welded" the edges using a hot iron and thin strands of 0.4 mm wood filament. Does anyone need some pre-drilled screw holes? What would be the ideal screw diameter for this application?