Got pics of what I did now. I installed a piece of plastic, basically a plastic screw that threads into the screw hole of the bolt on neck. Then I took the smaller screw that came with my strap locks and tapped it into the plastic screw adapter thing.
Back Plate with screw adapter in hole. (The Black pad is there to protect the shiny metal surface.)
http://www.flickr.com/photos/oopssorry/5741747554/in/photostream
Strap Lock VS Neck Screw
http://www.flickr.com/photos/oopssorry/5741747554/in/photostream
Strap Screw going in.
http://www.flickr.com/photos/oopssorry/5741205633/in/photostream
Finished product!
http://www.flickr.com/photos/oopssorry/5741216079/in/photostream
I wasn't able to take the adapter out, as if I did I would need a new one (might break it). I'm not sure were to get them, as I was given the one I have from my Gpa, but you should be able to go Home Depot and ask around and get what you need. I've been using this setup for about 3 years now with no issue, so it should work for you too.