Yeah, pics would help. I’m thinking a sleeve and JB Weld. Or just plain old weld.
Send us pictures. Collectively, we can fix the Crack of Dawn.
To answer the question, you will not find zip-ties that will stand up to this application. They rot in the sun, get brittle and will break. If metal hose clamps failed, you need to Go Big.
I dunno…I have some “uv resistant zip ties” that have been holding up my fence extension all around my yard for 3 years now, and they have lasted just fine through cold and heat. Well like 10 degrees to 90 degrees. However hot and cold it is here in Ohio.
Vibration though, I can’t say. My fence is in full sunlight all the time but it’s not going anywhere
They also do make stainless steel zip ties. Those are going to be pretty durable - immune to UV but not vibration - but like all the other posters say, zip ties are still going to leave some play in whatever you are tying together. Epoxy is most likely the correct fix.
I can’t see much from your picture, but would a bungee cord work? I use those to hold down parts on my motorcycle where a latch has broken. Sure, the vibration eventually wears throug the cord, but it takes a long time, and replacement is cheap.
For “zipties” griplock ties are probably the best I know of, but really you should be using Adel Clamps or another solution that is intended to deal with vibration.