I zip tie it to the lid after I cut out a nice large square for the best circulation.
I have never seen them even attempt to chew out or the evidence of it. There isn't really any reason for them too, they have many other things to chew and keep entertained with.
I got the set up idea from Tekwarren at his forum, it's worked really well for me.
My asf don't bite either, so that may be a clue? Not really sure... they are all pretty handleable and my fawn girl even greets me for treats.