Thanks 😀 !
I used the normal 4 mm bolts that you recommend and we basically mounted them as recommended on your site.
But we used the nuts that came with the Boens (and some Loctite to be on the safe side). A part of the nuts sits in the holes in the plate, too (the holes in the plate are 5mm), so the part that sticks out under the plate is very flat – good for my 70mm wheels.
This time somebody who is well able to mount quads drilled all the holes and we mounted them together :wink:.
Bont shoes normally come with 5mm bolts and nuts, like these
but mine didn’t (I got them off Ebay).