Help 2010 tundra 4.6 valve cover gasket replacement passenger

I need help. I changed out the valve cover gaskets. I ended up with a 12mm heaf x 4mm long bolt that I can not find a place to out it back

Can you help? Where does it go?

 

I need help. I changed out the valve cover gaskets. I ended up with a 12mm head x 4mm long bolt that I can not find a place to out it back

Can you help? Where does it go?

 

Gotta take it apart and retrace your steps in my opinion, that literally could’ve came from anywhere lol

 

Fun times. I went to dealership to parts and got two diagrams. The only bolt that looks like it is the center one which I have already installed. Then a mechanic was in lobby and heard me talking and said he would look at it for me. He went outside and said it is nothing obvious of course the intake is on. I tried to see if they had the center bolt in stock thinking to compare they didn't. So I will have to go back and trace my steps. Thank you for commenting

 

JDM weight reduction yo.... Nothing of value to add other than what @Optic15 stated.