Thanks Boomer. I'll tighten it down well.
They are out of regular locknuts at my store. Since you seem to know a lot about nuts!? What is a Tension locknut? Is it just a beefier nut to hold down tension so it doesn't pop?
Beefier beef, nuts and tension. I can't help it today.
https://www.homedepot.com/p/Everbilt-8-mm-x-1-25-Zinc-Tension-Lock-Nut-869148/323707757
Well I do hang out with some of the worlds biggest nuts on certain forums.
I've never heard of a "Tension" locknut. Nylock nuts are those with a nylon insert that grips the thread preventing it from loosening under vibration.
Other types of locknut have intentionally damaged threads at one end so that they "pinch" the thread to grip it. These are less effective than nylocks.
Flanged locknuts have a sawtooth pattern on the face that is supposed to grip and prevent them from loosening. In my experience these are crap and are what Kawasaki fitted to the C10 in several places including the fairing stay. I can't access your Home Depot link but these are the type of locknut you need.
https://www.amazon.com/M8x1-25mm-Stainless-Self-Locking-Industrial-Construction/dp/B09PF4JGVZI use stainless steel nylocks everywhere on my C10. They go on and come off easily but don't vibrate loose and don't rust, and they ain't even expensive.