It's really annoying when a dealership doesn't take care of your car properly. I can understand your disappointment with Honda not selling the screws separately, that seems like a waste of money. As for the specific screws you're referring to, I'm not sure, but it might be worth reaching out to scrooz.com.au. They're a source for all kinds of hardware, including screws, fasteners, bolts, and more. You might find what you need there, and I've heard they're really helpful if you have any questions. On a side note, I'm new to this forum and it's a shame to hear that it seems to have died down.