Found screw - Where did it come from?

After washing my car today, right after opening the sunroof while standing outside the door, I noticed a screw sitting in the back-middle of the driver seat. I checked around and the only other screws it matched were the four on the sunroof rails, which were all there. Could it have come from somewhere else? It's certainly possible that it was dropped at service about 3 weeks ago when they were fixing an issue with the sunroof and fell into my seat when I opened the sunroof this time. I didn't notice anything behaving unusual. I just want to be sure my car isn't missing this screw before I toss it.

FLDarren said:

Don't throw it away! Put it in the driver side cup holder. I never have a drink in that cup holder. I put some small things there for safe keeping. lol

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Good idea. I almost never put drinks in my cup holders and also use it for small things.

Johan said:

It's from the pano roof mount:

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Since I'm not visibly missing any screws on the pano mount (I see 4), my question is if there is anywhere else less obvious that it could have come from. If not, it most certainly came from the pano mount when it was last serviced and is not a concern.

Just got a call from service about it and they confirmed that the four screws I saw in the sunroof are the only screws of that type, so this is resolved.

Edit: I should give more recognition where due. Kody at Cleveland is the one who confirmed it. He's been great with all my service interactions. Thanks, Kody!

ArcticSun said:

Pano only screw. If you have them all there, then this is extra. Your car probably got a rework or saw the water booth a couple times

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The moving glass was replaced twice since July (first time didn't completely fix the issue, second time made it right). I'm pretty sure the screw came from the second replacement. Water/leaking was not the issue.