I have seen this somewhere but can't seem to find it again on line. It is a chrome washer/bolt that is imprinted with Triumph that goes in the rear fender hole if you remove the passenger seat. Looking to go solo seat w/o a fender bib and this looked like a good add to fill the hole that secures the passenger seat. Any ideas?

05 BA, Goodwood Green, Chevy605 pipes , ai removed, Freak kit, K&N pods, 145 main/42 pilot / 3 turns out, bags and screen