2016 HARLEY-DAVIDSON FLHXS Structurebody Problems

PRIOR TO RIDING, I ALWAYS TIGHTEN THE SADDLEBAGS, AS ANOTHER FRIEND LOST THEIR SADDLE BAG ON THE HIGHWAY MONTHS PRIOR (SAME MODEL). WHEN EXITING THE INTERSTATE, THE RIGHT SADDLEBAG FELL TO THE HIGHWAY, CAUSING DAMAGE TO THE SADDLEBAG. THE BOLTS AUTOMATICALLY BACK THEMSELVES OUT, NO MATTER HOW FREQUENTLY YOU TIGHTEN THEM. I HAD ONLY GONE APPROX. 20 MILES ON THE INTERSTATE AFTER TIGHTENING, WHEN THEY BACKED OUT. NOT ONLY IS THE SADDLEBAG RUINED, IT'S A GREAT SAFETY RISK TO OTHER MOTORISTS WHO MAY HIT THE SADDLEBAG, OR THE SADDLEBAG MAY STRIKE THEIR AUTOMOBILE OR ANOTHER MOTORCYCLE.