Cool. Thanks for the simple answer. I plan on doing the t'stat this weekend since it's leaking because when a friend tried helping me replace it last time there wasn't an O ring... After reading many threads, I understand it much better. And need to redo it correctly.Mace said:I use whatever I can get at the local autozone...
Aluminum permatex probably..
VW also uses those copper plated prevailing torque lock nuts on the early Rabbits. Top tip for ACVW guys is to use them on their air coolers. Regular brass nuts like I referred to above, OTH, can be had from a real fastener store like Specialty Tool & Bolt (they're semi-local to me so no shipping). Cool thing about some of the metric versions that I've bought is that they are longer than a typical steel nut - nearly are the length of a coupler nut. [/hijack]snippage
The reasonably cheap way to get the copper plated self- locking nuts is to search for BMW exhaust manifold nuts.
In the aftermarket, they usually have the thread pitch and diameter listed, and between various models
and the downpipe nuts, you can find 6- 12mm sizes in the 2- for-a- buck range.