VTL Binding Post - Sources?

I have a pair of VTL MB-450 amps who's speaker binding posts have become brittle and are starting to crack. I'd like to replace the posts and thought I'd check to see if anyone knows where I might find a direct replacement part of equal or better quality? Even a part number if known.

I've called VTL but they are still checking to see if they can sell me the parts and how much they would cost. Thanks for your help.
PlentyPlenty of options besides OEM. VTL originals are nothing special and replacing them with any aftermarket will not drop your unit value down at all.
One thing I've never seen is cracked binding posts neither on speaker or amp. Why would they?
I had VTL 250's, my buddy had the 450's. We both replaced VTL's OEM posts for un-plated Cardas which are far better quality than original.

You'll want the short posts. The longer ones are used in speakers. They'll easily fit in your chassis and I personally wouldn't be concerned about resale.

Thanks for the helpful replies, I've only hand tightened, but I do have a good grip. 8~)

I found these short post options from Cardas, by unplated did you mean copper? Also one from Vampire with Red / Black marking the Cardas misses. Might any or all of these work? Thanks again.