As far as I'm concerned the "proper screw" is one that works properly. Looks are secondary. Sometimes "improper" screws work better. I have a 1903-A3 Springfield that I couldn't stand the slotted head action screws on. Replaced them with some socket head screws from Brownells. Had to buy the "blanks" and thread them myself bot it's a lot easier to torque the action screws now using the hex head driver rather than the straight blade that just "boogers up" the screw head appearance.PS....please ignore the improper screw on the bottom metal. The extended length ones I ordered haven't come in yet.