Broken Aorus Waterforce AM5 standoff that needs replacing

Recently I have bought, among other things, a new CPU cooler for PC hardware refesh. Everything else worked like a dream, but it seems that one of the standoffs for Aorus waterforce cooler I got was faulty and the top screw snapped off when I was securing down the cooler block.

I am already in contact with the store I bought the cooler in, but I'd also ask if there is any good place (that ships reasonably well to Europe) where I could buy a replacement.

I saw some that look similar despite being for a different brand, but there is no way I'd risk getting even slightly wrong size ones, since CPU cooler is one thing that does need to fit very snuggly.