These are the same screws we use on our OPF-G, RMR. Made in steel alloy and rated for 120,000 psi, these screws are immensely strong. The Torx head offers superior protection against stripping.
For OPF, RMR, the strength of the sight to plate is not as important, as the design tightly cradles the sight on the plate, in between the front and rear recoil lugs/fences. Sight to plate screws only need to what they're meant to do, that is to keep the sight planted on the plate, and not what they aren't designed or made to do, which is to handle the G force in recoil. Nevertheless, we over build for strength, nobody asks for weaker screws :)
Sold as a pair, with a small packet (sufficient for multiple applications if sealed properly). Bonhus T10 key and M3 x 0.50 mm plate to slide (rated for 140,000psi) screws are both optional.
Made in the USA.