Passenger Seat Question

[randymwill]

Hi everyone. I just purchased an 07 Vegas 8-ball from a private seller. It came with a passenger seat, but when I took off the covers, there were not bolts provided to secure the seat. I have tried to contact the seller to find out the exact size/type of bolts that he used to secure it, but have not gotten a response. Could someone tell me what sized (hex?) bolts should be used to secure the seat?

Thank you.