One of my martinis has a round headed bolt with slot for a big screwdriver easy to get too and only problem is that I have to stick a couple spacers (washers) in the hole as when the slack is fully taken up buttstock is still too loose. OK on the plan #2 which is a piece of 3/8 threaded rod and a couple of 3/8 nuts. Only thing is that the hole in the stock is too small even using a thin wall extension socket. Tried the socket on another and had no problem.Any ideas?. Frank