I found this laying inside my rotor in the middle of a wheel bearing swap. No idea what it is or where it came from. Anyone know what it is?

2011 G37x

 

UPDATE: I'm a dingus. It's a lug. Thanks!

 

I was about to say, only bolt I know with a knurl is the wheel lugs.

 

You have the rare 6 lug G.

 

That's a lug stud. Some people might try to tell you that it’s a banana. They might scream, "Banana, banana, banana," over and over and over again. They might put BANANA in all caps. You might even start to believe that this is a banana. But it’s not. It's a lug stud.

 

A stud banana perhaps ?

 

OP did you make sure to go back and reinstall the missing stud I hope?

 

Assuming, of course, one is missing from that hub...

 

That's from the wheel bearing parts. I remember I remove those from the old wheel bearing part just as spare