“Why is the save button shaped like a complaint about poor quality copper?”

Lisa needs a reed for her saxophone to play in the talent show, but Homer doesn’t know what type of sax she plays.

Luigi Wilkes Booth

Based on that list, you may be interested in This Old Tony, Jeremy Makes Things, Rainfall Projects, and Tyler Bell.

11.5mm seems like a really oddball length. 12mm is the closest common length, and 0.5mm (.020") isn’t much. Have you already confirmed that a 12mm long screw won’t work? If so, grinding the tip down slightly with a rotary tool or bench grinder may be your best bet. If you can, thread a nut onto the screw before you grind it down. That way any threads that are messed up by the grinding will be restored when you take the nut off.