Audi A6 C4: Crankshaft Pulley Bolts

Camshaft sprocket bolts for Audi A6 C4 2.5 TDI.
I need new screws for the camshaft pulleys to replace the timing belt.
These screws appear to be no longer available. Not even from Audi Tradition.
Where can I still find these screws (new)?

Camshaft sprocket, front.
Hexagon socket head screw (combination) N 901 439 06
M12 x 1.5 x 35, Grade 10.9

Rear camshaft sprocket.
Hexagon socket head screw (combination) N 904 721 01
M14 x 1.5 x 50

Hi,
schon mal beim Teiledienst nach dem Ersatz gefragt (neue Tl. Sure, here is the translation of the text from German to English:

"Nr.) ?"
It seems there is such a thing, for example, N 905 021 02.
hg
Herbert.