Help me hunt this bolt! chasis, frame, subframe?

[JettiGLI]

Today I went to the shop to do some bushings and control arms, when I arrived home I found inside my "doggy" bag of replaced bolts this strange looking bolt.
I have the theory it might be waste of another car that got mixed with my stuff, tomorrow I will lift my car searching for any missing bolt.
Has anyone ever seen this type of bolts in VAG?

Thanks!

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[spartanrabbit09]

subframe bolt

 

[jimithing412]

That is a stock subframe bolt. There is a TSB out to replace these shitty skinny ass bolts with the stronger more substantial Passat subframe bolts which helps to quiet the front end "clunk"that seems to occur on MKV's

 

[JettiGLI]

Thanks for ther response I also found this in the vortex http://forums.vwvortex.com/showthread.php?4473701.
I got ECS bolts which are metal and with complete thread, thats why I got confused!

Thank you all for the info!

Cheers