Fulcrum and Campag are the same, alloy or steel axle versions. This is for steel axle's with cartridge bearings. I don't know if it is the right one for Kamsin wheels though. Is the axle alloy or steel?
I might be able to help you out, do you have a picture of the original freehub? which year aret the wheels? I can check agianst the spares doc....cheers