Definitely an oil drain plug
I just went out and checked steering column and shift linkage. I will check engine ground. Is there any other ground at front of car that uses 5/16 “ bolt?
Also heres another pic it looks sheared off.
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Found bolt head lying on dryveway. Looked around but haven found where it went. Looked at lights, grill, lower radiator core support. Car is a 69 Charger. I also looked at the head marking document and its not listed. Its 5/16”
Anyone have any idea?
View attachment 643293 View attachment 643294