About the screws: Same on my car!
Two fake screws fixed in the air .... :doh
Probably caused by being screwed directly into the ash frame with a power screwdriver and no pilot hole. Screws made from cheese doesn't help either. Replace with stainless but you won't be able to use same hole location.
I carry a box of cooking matches in my car (safety ones of course). If I ever get a loose wood screw while out and about, a couple of neatly trimmed matches poked in the whole make a suitable fix and give the screw plenty to bite on. If I'm at home, I use a touch of woodglue to help.