Front Caliper to Carrier Bolt Part Number

[TSlice]

Does anyone have the part number for the bolt that attaches the front caliper to the carrier? There was another thread where someone posed this question and it was answered, but the answer was wrong; part number given was the carrier to spindle bolt. I am looking for number 15 on the attached diagram. The part number isn't listed on any of the parts catalogs. Thanks for the help, guys.

[rs4max]

Doesn't look to be listed on here either: http://genuineaudiparts.com/parts/20...iagram=viewAll but then those diagrams seem to be missing a lot of the small hardware.

[TSlice]

Thanks for the reply, rs4max. Sounds like you had exactly the same luck with the parts diagrams as I did. Fortunately, I thought to look at the diagram for the R8 front brake (same calipers as our cars on non-carbon ceramic R8s). Since the R8 doesn't use a separate caliper carrier like the RS4 and RS5, the bolt that secures the R8 caliper to the hub is listed in the diagram/parts listing. Obviously, the non-threaded shank portion nearest the head of the bolt will be compatible as the caliper itself is identical. It will be a matter of the threaded portion at the end of the bolt working in both the R8 hub and the RS4 caliper carrier. I have ordered a bolt (part number WHT001330A) to test fit. I will make sure and update this thread for future reference when I have an answer as to the compatibility. Here is the R8 (non-carbon ceramic) front brake exploded diagram. The bolt in question is number 16: