I have a Corbin seat off of my RT (that I'm about to put up for sale) that I bought used and have a question about the locking pin. Does the locking pin normally come with the seat as part of the hardware kit? The pin off of my stock seat is I believe 8mm and the threaded insert in the Corbin looks to be maybe 6mm which leads me to believe Corbin supplies the pin. If so the pin was not included when I bought the seat.