Insert a a couple of feet of small gauge wire down through the hole until you can fish it through into the interior of the car - so now you have a few inches of wire sticking out of the hole in the top of the fender and a few inches of wire coming out of the top frame pivot area.
Form a tiny loop in the end of the wire that's inside the top frame area and tie a couple of feet of light gauge string to the end of it - remember that you are going to have to pull this through the hole in the fender, so keep it small!
Next slip the lockwasher and nut onto the other end of the string (washer first, then the nut) and tie a knot or two on the end of the string so the the nut won't slide off.
Now pull the wire/string/hardware combo up through the hole until the washer and nut are up against the inside of the fender. At this point squirt some thin white (Elmers, etc) glue through the hole so that the hardware is coated. Let the wire dangle down the side of the car until the glue sets up. I think that I might have put some addition weight on the end of the wire to help hold the hardware against the inside of the fender.
Once the glue has dried, you can cut the string off near the fender and gently push the remainder through the hole of the fender. This is where a little luck helps! Not enough glue and the hardware is sitting in the bottom of the fender.
At this point you take the lift-a-dot stud and insert it into the hole and try and get it started into the nut. Too think of a glue and you'll never start it and most likely push down into the fender. Once you've got it started, gently lift while you tighten until tight.
You may find it easier without the lockwasher, but I wanted it there to keep it from backing off. I don't have any of the 'Beams here to check, so I hope that I haven't missed anything. Good luck!
Jeff Antosiak