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Found 10mm socket head screw under car

kiNGng3

Member
Aug 14, 2019
280
119
Vancouver
Reaching out to the community to see if this 10mm socket head screw found on my garage floor under the rear passenger tire belongs in the Model 3 somewhere? I found it odd to see a screw I've never seen in the garage before lying right under the rear tire. The screw has a 10mm head and is about 1" long:

IMG_1284.jpg


Any ideas? My garage floor is super clean so this was a surprise!
 

yerEVan

Member
Dec 29, 2018
864
793
Near Philly
Reaching out to the community to see if this 10mm socket head screw found on my garage floor under the rear passenger tire belongs in the Model 3 somewhere? I found it odd to see a screw I've never seen in the garage before lying right under the rear tire. The screw has a 10mm head and is about 1" long:

View attachment 452424

Any ideas? My garage floor is super clean so this was a surprise!
There is a plastic cover right behind the front bumper on the belly of the car. It has a hole on either side of the car (2), and there are screws that may look like that, holding that plastic protective sheet on. I hit a dip in the road, and lost one of those and also scratched that plastic piece like crazy. Had to pay for mobile tech to come out and replace that piece and also the missing screw holding that one side in.
 
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Reactions: NoMoGas

NoMoGas

Supporting Member
There is a plastic cover right behind the front bumper on the belly of the car. It has a hole on either side of the car (2), and there are screws that may look like that, holding that plastic protective sheet on. I hit a dip in the road, and lost one of those and also scratched that plastic piece like crazy. Had to pay for mobile tech to come out and replace that piece and also the missing screw holding that one side in.

Yup.Thats what that looks like.
 

kiNGng3

Member
Aug 14, 2019
280
119
Vancouver
There is a plastic cover right behind the front bumper on the belly of the car. It has a hole on either side of the car (2), and there are screws that may look like that, holding that plastic protective sheet on. I hit a dip in the road, and lost one of those and also scratched that plastic piece like crazy. Had to pay for mobile tech to come out and replace that piece and also the missing screw holding that one side in.

I thought the screws or clips that support the plastic sheet are plastic?! I guess I'll jack it up to see.
 

Garlan Garner

Banned
Mar 31, 2016
11,351
6,062
Chicagoland
I have found that 99% of all of the screws in my Model 3 are machine screws.

That's not a machine screw.

Hopefully you didn't pick it up on the road somewhere.
Or.....thankfully you picked it up on the raod and didn't run over it ( especially since there is no spare ).
 

Daniel in SD

Well-Known Member
Jan 25, 2018
6,281
8,933
San Diego
I agree, that doesn’t look like a screw from a car. Also, look how beat up it is. Somehow your car picked it up from the road and dumped it in your garage. Quite the Good Samaritan.
 

AlanSubie4Life

Efficiency Obsessed Member
Oct 22, 2018
8,973
10,695
San Diego
Try look underneath the plastic bumper cover aft of the rear wheelwell. I had to remove one just like this to install my rear mud guards.

Machine screws.

There is a plastic cover right behind the front bumper on the belly of the car. It has a hole on either side of the car (2),

If you are talking about the aero cover under the car, it has about 8 machine screws/bolts holding it in.

So no match on either of these.

My guess is it came off the road somewhere. Could have been wedged in your tire and then dislodged in the garage. Or it is off of something in the garage.

If it came from the car, let us know. This is a good opportunity to make sure you have all your aero cover attachment bolts and rear diffuser bolts. There are about 25 to look for...
 

SigNC

Active Member
Aug 23, 2017
1,461
1,260
NC
I found a screw exactly like this in my garage a few days ago that I kinda dismissed. Now I'm wondering if it came off my car.
 

Wennfred

Supporting Member
Apr 4, 2019
2,915
1,821
San Diego
It’s not the 10mm brake rotor screw, those have a flat tip.

Also it’s a National Fine Thread bolt since it’s used in the automotive field so either off the Tesla or an older car you had in the garage.


Fred
 
Last edited:

Kirby64

Member
Jun 28, 2018
485
485
Austin, TX
Am I the only one who is amused by the fact that it is a 10mm: the same size of socket that always seems to be missing?

o_O

Not really amusing considering the 10mm always goes missing because the 10mm is what is always used. It makes sense: if 10mm is the most common, it's the most common wrench/socket to be borrowed/used, so most common to be lost.

Most cars that use metric are almost exclusively 10mm bolts unless you need a larger one for some reason.
 

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