I just looked at Lightfoot's comment and it reminded me of how I did it - it was about 10-years ago. I'm pretty sure I took a #10-40 die and compressed it enough in the handle to thread on to a 99 forearm screw. I then took it to the screw shank on the Model 70 type swivel and slowly recut the threads to fit into the 99 forearm stud. I don't have a Model 70 so I don't know what thread size they use. #8-40 dies must be hard to get, otherwise I would have used one. The die I used was made by HSS and has a split section in the side that will allow it to compress in the die holder.
You'll have to pardon me. I'm not a machinist or mechanic by trade.
Last edited by S99VG; 08/23/11.
