Thread: Sako screw size

I can't tell you the size off the top of my head but I do know they have used some odd-sized metric screws in the past (3.5mm from memory but don't remember the pitch). If you wanted to permanently plug the holes there are a couple of options (retapping to another size, or forcing a close size screw in by deforming the thread) and then cutting, peening, and dressing down before matching the finish. A less permanent alternative is to mix an appropriately coloured epoxy and slightly overfilling the holes using a toothpick. When set it can be carefully trimmed flush with a razor blade. It can be removed at any time with a heat gun and a paperclip.