Sure they are. Search 'incolnel' and 'Arhennius.'
Many have issues getting the stud out, but it's replaceable...with a $20 bolt. Ouch!
According to the thread I think you'll find, some use some other grade of bolt...but I'm not sure how good/bad an idea that is.
You know of realoem.com I assume.
Upcoming NYC dates: Jan 8 and 27. See Facebook for other shows and PM me if you can make one...love to see you there!
Mangofy your E46!