[ParkerF]

Well, 148 just uses the rivets that come in the package with the treads. As mentioned above in a few posts above, some teams purchase rivets with broader heads to cover more area around the hole so the small standard rivet-head doesn't rip through the hole. My main problem has been the nail part of the rivet popping out of the head and breaking the rivet before actually riveting it down.

I've never heard of using screws, so I don't know how that would work out or if it would do any good. From the size of the holes in the wheel, I would think the screw would be so small that the head of it wouldn't cover enough area around the tread hole to do any good.