been having trouble finding the appropriate size bolt to replace the front speed sensor mounting bolt on a 07 G35S. Didn't find it in the service manual, and can't seem to find any info on the online parts sites.

 

Take the one off the other side, go down to Home Depot, get something the correct thread pitch and length.

Or go to your local pick-n-pull and see what Nissan/Infiniti vehicles they have that are about 2003 or newer, it's probably the same bolt on nearly every Nissan.