So within 3 months of purchase, my black hex drive M6 number plate bolts are rusting. Given they're ebay specials I guess I shouldn't be surprised.
Is there such a thing as good quality black bolts, preferably hex drive with a low profile head (to fit under the number plate cover) which won't rust? I'm going to need something which isn't regular steel I assume.
i.e. something like this but better quality?