Sadly in our “direct sun light zone” the typical zip-tie has about 3-6 months life expectancy before it brakes.In case nobody mentioned it... Zip ties. Half of the stuff in my run is held together with zip ties. My run is built on a metal frame and all of the fencing is zip tied on.
I've also used zip ties as "a pair of hands" to hold something in the right place while I do something else with the other end.