Replacement for speaker binding post


This is for my Sonus Faber Toy Tower.
http://tinypic.com/r/bfeted/9
http://tinypic.com/r/2jandea/9

Not sure what's the right term for this thing. But somehow I lost one of the screws on the back...

I bought mine from Audiogon so the local dealer won't help me out.   Anyone know where I can buy a replacement ?

128x128kodreaming