[Chevyman2]

Was doing undercarriage inspection and noticed a nut laying in the front in between plastic.

I know this is long shot but does anyone recognize this nut and it’s proper placement?

It has three slots running horizontally through threads. Also it has a washer that rotates but attached to nut.

I have looked over the car and do not see any studs missing a nut .

My car has not been worked on besides dealer they aligned the fender was told wheel liner removed bolt loosened fender realinged and retorqued.