What is it

[Levaughn]

I found this lying on the ground. Does it belong to a car?

 

[Michael B.]

Nope, not a car part. It looks like the handle to a vise or a similar tool.

 

[BrandonV]

Looks almost like a alternator belt tensioner adjustment bolt.

 

[BrandonV]

Here is one from a Honda Accord.

 

[Black300zx]

Definitely an accessory belt tensioner of some sort. Alternator, PS pump, AC compressor....

 

[Zewnten]

Some one had a bad day.