Stock lug nut size

[red98GTS]

I have no idea what you mean by "inner diameter" of the lug nut, but if you would like to know what size socket fits the lug, it's a 3/4". Pete the XGG scratching his head on that one!

 

[FrankBarba]

same size as a neon....

 

[MtHam ACR]

I believe they're 1/2"-20, not 100% though. The lug size is 3/4".

Michelin safety poster child,