I'm trying to figure out how I want to mount the LED headlight drivers to the back of the plastic headlight buckets. I have the kit from Watsons Streetworks (similar to what Breeze sells) and the drivers look like the photo below. There are what appear to be holes for fasteners but hardly any room for the head of a fastener. Has anyone figured out what fastener will fit in these? I could take one down to the hardware store and rummage through their bins, or I could grind off half the head off of a normal screw to get it to fit in there, but if someone has already solved this riddle I'd appreciate a hint.