i saw these screws while patching the big holes in plastic box where the pipes came in. looked like they beat holes in the box with a hammer. that is when i knew the kind of crap work the factory does. took grinder to screw ,took a minute to fix that. then i fixed the tank heaters that were falling off and made a shield to protect the front of propane tank and the access door from the front tire throwing rocks, mud and water on them. i guess Thor thought the front of tank was the mud flap.