Hello ...ran across this thread while searching for an answer to my situation...
convertible top must be naulayy operated ...
In so doing, I've gotten it up and stowed... So far so good

I do not have a multifunction tool
the main problem for me is the nut or lock to secure the tonneau cover is larger than 10mm and it is the only nut I see

Am i missing something ...is there a parts diagram I can review?

Thanks in advance for any help