Replying to Stripped DIN Screw?

Okay, somehow in my PX12 Jib Ti's, I have managed to strip the head of the screw that controls the DIN setting in the heel piece. This means that there are no threads on top for a screwdriver to lock into and tighten, and I can't get the setting past a 9.5. The good part is there are threads still there so i can loosen it and get the part out if i need too. Anyone think Look would make a replacement part for this, or is this even possible to replace?