I thought I might toss this up for you guys to see. I up-graded one of my Take-down assembly screws from the simple slotted type to a pinned type. This eliminates the chance of the hollow ground screw driver I always made for each knife ot slipping and possibly damaging the ahdnle material.
The Screw and tool are 416 stainless and the pins are hardened tool steel.
It also allows the screw to go flush ar even recessed.
Just somethin' else to look at!