Threads sometimes need cleaning up. Overspray from the factory, crash damage, there are all sorts of reasons. We've got a few common sizes here for those times you need to clean up a water bottle boss or a derailleur hanger.
- M10x1 is most commonly found in derailleur hangers
- M5x0.8 is typically used for bottle cage bosses, stems
- M3x0.5 usually found on older horizontal dropouts for the axle positioning bolts.