What is this?

I have this shiny metal thing that looks like a heat shield that is missing a bolt, so it rattles around. Can anyone tell me what that is so I can look up the right bolts on Toyota parts?

 

It looks like the heat shield that goes on the exhaust manifold. You could probably take the other bolt off that's still there and get some new ones at the HW store.

 

Its either the a shield for the exhaust manifold or if you have a 5.7L it could be part of shields for the starter. Shouldn't be to hard to find on Toyota's website and if any number or diagram looks confusing, just copy and past the part number into images and find some verifiable photos. Also just get it from Toyota the OEM bolts are not really expensive it will probably be $3 and some change to have right head size, built in washer, shank size, taper depth, and thread pitch, and hardened Automotive grade.

and what engine and what side is this picture from if you want some help tracking down the part#

 

Thank you both! This picture is of the passenger side. I have the 5.7L. After the suggestion of the exhaust manifold heat shield I stared at the parts diagram for that and believe that is probably what to is, and to your point the bolt was cheap! Only $0.75 at the Toyota dealer near my house. I really appreciate the patience this forum has with newbies!