Bearing cap screw
 

077103460 is the part number I got from this site. When I search Google with this part number there isn't many venders that sell them. I did find one vender list the bearing screw as WHT002015, so I'm guessing this is the new part number?

A lot of hardware does supercede to WHT-something so that would be plausible. I don't bother changing them as they don't appear to actually stretch, plus Audi UK don't keep them in stock so they have to come from Germany, meaning no one else changes them either.

Interesting. I'm not looking forward to this valve spring replacement as it looks (I've been watching YouTube videos) like getting the valve keepers back in is going to be a real pain. Next weekend is going to be long when I start replacing the valve springs and my back is going to HATE me!