You will get several different answers to this... I just used them for the first time and went with 5min epoxy. Many will tell you poly glue, white glue, wood glue, canopy glue, 30min epoxy, 5min epoxy, etc etc etc... the poly glue sounds like a good idea since it expands but I didn't feel like babysitting it while it set-up to wipe off the foam that ooozzzes out. So I oiled the hinge, dabbed the 5min epoxy in both holes pressed it together waited 5min and I was done. They are solid. Only problem I see with this method is if you don't plan ahead or have some sort of problem while putting it all together you could be in deep doo doo... so if you think you'll need more time you might want to use 30min or one of the other glues.