In the process of putting in new Valve cover gaskets, the center bolt on the passenger side decided to hop out of the socket and make its escape, cant find the little ****er.

Auto parts monkeys dont seem to have the necessary bolt, the ones the had that were similar were too long, and I dont feel like testing if the thread pattern is right by jamming random bolts in there.

Wondering if any of you guys know the correct part number for the bolt?