It is 13/16" I believe but they're so bad that 21mm socket (which is slightly larger) fits better. I second post above - $25 no-name lugs from American Muscle are better than Ford OEM ones.I couldn't find answer through searching. What specs should I need check buying socket? Thanks guys:cheers:
X1000Do yourself a favor and replace those lugs. Ford uses cheap lugs that have a thin piece of metal on the outside for the bright look. That metal cover distends and deforms, and eventually, you won't even be able to get a socket on some of them.
You can pick up quality lugs from any of the vendors. I chose the Gorilla locking lugs (in black, to match my PP wheels), where each lug is an individual lock. They're more expensive, but it's good peace-of-mind for me. I also don't have to worry about some dumb shit tech at Ford attacking them with an impact wrench.
JR