DerbyDad03 wrote:
I wanted to see how strong AZEC is since ...
....
The AZEC never showed any signs of "splitting" nor did it appear that
the threads pulled out of the material at all.
....

"Azek" w/ a "k" instead of a "c" but that's a minor nit...

It is strong enough and in short sections as you used it won't show up
but as construction material it is more limber than wood of same
dimensional thickness and so flexes more. It also tends to relax over a
span w/ time.

Those characteristics won't be of significance in the given application,
just an observation.

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