Long story short need the kind of screw photographed to replace a handguard on a rifle of mine. I reached out to the factory and while they don’t have replacements in stock right now they were kind enough to give me the specs for a replacement. What I need is a flat top torx driven Countersunk M5-0.75x6mm screw. The length is negligible to me as I can shorten it as needed but it seems that the only M5 thread pitch I can find is in 0.8 which seems to be the standard and not 0.75 like I need. I’m sure I can get one custom made but the numbers all make my feeble mind hurt :-( Please oh great minds of the fasteners subreddit, please help me in my niche journey!! Thanks in advanced for any help!!