Can you help me identify this bolt and where to get one?

[ToJTornottoJT]

I am in the process of detailing my truck this morning and I notice I am missing this bolt where the front fender bolts into what I think is the core support. Does anyone know what size this is and where to get another one? One picture is of the missing bolt and the other is from the other side.

Thanks!

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[PuddleJumper]

https://www.moparpartsgiant.com/parts/mopar-screw-hex-head~6513136aa.html