Know size and thread of the bolt to the exhaust hanger?
 

Im getting a rattle under my car, really annoying. turns out its this...
Missing a bolt. Does anyone know the size and thread?

http://imageshack.us/a/img5/9120/97m1.jpg

@PERRIN_Jeff , u might know :)

Why not get it from the dealer?

a trip to the hardware store is easier than a trip to toyota :)

I just got a new hanger and bolt from the dealership, the only thing on the bolt packaging was "M10" and no reference to thread pitch.... if no one else chimes in with the thread pitch you could always unbolt the hanger from the transmission (2 bolts) and take it with you to make sure you get the right size

Also of note, when my bolt went missing it also screwed up the threads in the hanger. The hanger is ~10 dollars at the dealership

If all else fails, you can take the hanger to your hardware store and do it by trial and error.