You'd have to do something pretty out-of-this-world to mess up the process of screwing bike tyre onto blue wheels. Just experiment; if you've got wood screws handy that seem like they might be the right size, try them. If they don't seem like they're holding the tyre on well enough, get longer ones. If they won't screw down all the way, they've probably gone through the blue tread and are now trying to get through the harder black plastic, in which case, get hold of some shorter ones.