I replaced the radiator last night on my son's 2003 G35. One of the fan blade nuts got lost in the process. I tried the local Infiniti dealer today and they did not have any in stock. Does anyone know the specs on that thread? I would like to see if I can pick one up from Lowe's Depot that would fit and work.

 

If you go to Lowes and go through the metric drawer grab one m5,m6,m8,m10 and you will be good guaranteed. Or eyeball it because the metric threads are easy to differentiate. They are standard pitch metric for the most part.

 

Or just take one of the other nuts with you and match it up.

 

I finally did that. The nut is M6-1.0