I recently got into Encore game by buying a barrel and wood from one party and action from another (ss).
I learned the bolt in the action w2as too short for the walnut butt stock...In short, I learned that T/C makes a shorter bolt for synthetic stocks and longer one for wood, as they seem to think the walnut needs more wood to hold up. true or not, it is confusing.
I ordered one from T/C - free, but sent downtown and picked up longer hex head 1/4 x 20 in ss, with washers etc forabout $1.50...
I am not sure they might have 8-40 screws, but will check. If they do, I will post and anyone can have for cost plus postage...