GoTT83

<center><img src="http://pictureposter.audiworld.com/62829/spacers.jpg"></center><p>I have 8mm spacers for your TT, similar to the ones pictured(I'm too lazy to take a picture) I've seen these sell for a lot of money online, but I'm selling these for $30 a pair, or $50 for a set of 4 spacers + shipping. These are 8mm so you can use the OEM lug nuts, they are plug-and-play. can also be used for other cars with a 5x100 lug pattern. let me know if you're interested.

gtt

Using so few threads is just asking for trouble. Even with 3-4mm I would get appropriate length bolts so you have 5-6 threads making contact. Also 8mm can push some wheels out far enough that the wheel becomes unseated from it's hub centric machined ring. I would use these with caution making sure they are appropriate for a specific wheel application since all wheels are unique in their hub configurations.

GoTT83

but i'm going to take put them on my car and see how much thread is still being used.

gtt

and also remove hub caps and make sure you have the machined wheel center supported fully by the hub. My aftermarket wheels have the hub centric part of the wheel out enough that a spacer larger than 5mm would make it stick out too far, loosing critical support.

GoTT83

about 4 threads are still in contact. I think that should be sufficient. I would also advise future customers to take Johnrg's advise close at heart.