Current coupe when purchased had Jeep seats installed with a myriad of 1/4" machine screws, star washers, hex nuts, flat washers and wingnuts!The wagon's power split bench seat was installed with huge stacks of washers and bolted through the floor pan with a fender washer on the outside. I bought and welded in the proper brackets.
They also hacked out the driver's side outer OE seat bracket because it was in the way of the jeep track