We assume your speaking of the seat box screws in the front face. We have seen those work loose, and other than some form of resin based glue there is not much, other than a slightly larger screw, which is a good idea. Front panel flex works it out like a hammer driver, turning it slightly with every bounce hard. Eventually they can turn out and then strip also. Not overly common, though yes we have seen it and we do mount them a little differently now. The newer mount style wont retro fit, though yours can be improved with the work mentioned. We also have added urethane adhesive to the front of the seat boxes to reduce the front wall flex and hold that area in place. Once it cures the screws are there. BCB