So it works good on the factory stock. Bad news is the factory screws seem to be to short on my bell and Carlson.... So I have an email in to them on recommendations.
Do you have a hardware store there, and a few dollars? - Take the screw that is too short with you, and buy one with the same thread pitch and diameter that is slightly longer.
There's nothing special about action screws, they are just screws. If you want something fancy, get one that is just like you like.
I wind up buying stainless screws most of the time, even though the chance of rust being a problem is vanishingly small.