Rs4 Rotor Question

[e36graduate]

Looking for the correct name for the little metal spring that sits under the Allen bolt that hold the rotor ring to the hat? Mine are a bit old and wanted to get new ones with the new JHm rings, however can't seem to find them anywhere? The JHM rings come with all the hardwar except these springs!

Anyone have any idea who sells them?

Thanks in advance!

[e36graduate]

Making some progress - called H type bobbin

[CoreyRS]

Id call JHM.

The bobbin should be size correctly based on the application (like any fastener; screw, bolt, nut etc.). It works like a retainer to give the rotor some play, but not too much.

definitely post up if you find the specs you need.