I have everything to put my jack in my 69 Superbee except what appears to be some kind of clamp or plate to hold the jack in place behind the spare tire, any one who can tell me what it looks like, a picture would be great.

I have the short winged threaded bolt, unless it screws against the jack some how, if so a picture of that would also be nice.

What you need is this plate in my picture. This is a dead-on repro that I sell. Completely die stamped just like originals. PM if you are interested in purchasing. The thumbscrew you already have is correct. It goes through this plate and into the bracket that is welded to the trunk floor.