I hope you realize those are not wood screws, they are the 1/4-28 machine screws to hold in the action.
Go to local hardware store and buy the size you need (cheaper) or McMaster Carr and look for them. Buy a little longer and buy a nut to fit, screw the nut down then cut to length then unscrew the nut to clean the cut thread.This way you will always get the right length, no guess work.
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