joshua delamater on JustAnswer walked me through my issue and it is resolved...the problem was that the carpet was covering the actual hex bolt. i pulled that carpet up on the wall area behind the seats and there was the bolt.
my corvette assembled flint michigan. my goal is to upgrade interior i have removed the 1/2" hex bolt from the front the seats;
however, the bolt on rear of the seats is NOT a hex bolt but a circular head bolt what tool do i use to remove it. it is about 5/8"