No, nouns with a numbers (or other quantifiers like sok or néhány and so on) in front of them are grammatically singular in Hungarian. And the verb needs to be singular to match.
I found other examples like this before, but this was the first one I decided to ask; thanks for the info :)
"Bolt" is a shop - a place where you can buy things. "üzlet" is actually a business - there needs not be any physical location. However many üzlet do have a location you go to - frankly often these would be called a shop in English. Like a "virág üzlet" - I would NEVER say "flower store" - always "flower shop".