I found the washer that kept falling off when I tried to screw in the thumbscrew a pain so I went back down to my fav hardware store and bought some 1/4" nylon washers to backup the chrome washers and hold them on and it makes the thumbscrew easier to screw on and off. It looks good and I don't have to carry a hex wrench with me anymore to take my seat off.
Finished product simple but works great!!! Good clearance for the seat too!!!