[V8] Passenger side TB cover!!!!!! HELP

[jpb3]

Hi all,

I have all of the bolts out of the PS TB cover with the exception of the hex
bolt below  the tensioner.  I am speaking of the recessed bolt just above
the casting protrusion on the lower portion of the cover.  Can anyone tell
me what size this is?  I removed the alternator etc.. have the DS cover off
(what a breeze compared to PS)  and just need to get this last bolt out so I
can proceed.  Thanks for any help.

john