My sincere thanks to all you guys who posted about these screws. I got some from J & P yesterday (All mine are 1710 or 1416 sporters, Don) and they are very nice screws, they also have a trigger spring kit (3 springs) to lighten your sporter trigger, might work in some other models, too. Set #5 was the correct set for my 1710D sporter, but set #2 could be better if you don't mind cutting down the rear screw for a perfect fit. Haven't done anything with the 1416's yet.
I also got some screws for my CZ 452 Varmint 22LR from Rimfire Technologies that are nice replacements. They have a few other items, also. One of these companies also have on their website that they will make custom screws at no additional charge, if my memory serves correctly. Hope this feedback helps someone else.