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.
dmax on the radio--answering all your car questions as best I can!
watsonnwatson.com every Wednesday at 9 p.m. Call in! (661) 449-9340 Click "Watch and Chat"
Please 'friend' me!