I had to deal with this with my dealer. Apparently the mechanic installing them knew they were incorrect, but because KIA only has the one part available and lists them as the correct one,the parts manager actually threatened to fire him if he refused to install them.
I did my own research and bought a package of Gorilla brand nuts listed for Toyota trucks and they work perfectly.
Expensive, but apparently nullifies most common thievery methods. And probably still cost less than what the dealer charges for the McGards they tend to install.