Window:
Perspex Opal 040 (3.5 mm?) or Opal Silk 040 (3.0 mm)
Thickness: 4.0 mm

Supplier:
WSV kunststoffen BV

M3 inserts:
insert outer diameter: 5.0 mm
length: 6.0 mm

M3 screw:
head diameter: 6.0 mm
conus: 45 degrees