I have here a picture of a front fender for aerox , on this photo you can see 2 holes , one is not so easy to see but there are two holes in one line vertical.
it is mounted with 2 M-5 bolts to the frontfork's outer tube
on the outer tube you see 2 supports for the attachement of the front fender...
NOTE that this is the left side of the fender with a right side outer tube!!