edcologne

i am looking for a screw that holds a strap of the convertible top cover to part of the folding frame behind the quarter window.
looks kind of like a screw w an attached washer that screws into the frame. it has a t-20 star/torx head.

can find bows, etc in the parts drawings but did not find small hardware stuff, neither in the parts dep illustrations nor in the genuine ford workshop manual.
its very possible that this is used at leat 05-09 or even until now.

is there any late model mustang specialized salvage yard??

any suggestions where to look or even better a part number would be greatly appreciated.