Originally Posted by
oneclick
Re FW threads - If the has a groove machined around the section of the flange to which the freewheel attaches, it's imperial threaded.
Re the binder bolt - if you cannot find one with a longer tab, get one with a hex socket on both ends, use two keys to tighten it.
No groove on the hub. I tested it with a Regina freewheel with two grooves, which I'm told means it was French. Then I tested the Cyclo freewheel by trying to screw an ISO BB adjustable cup into it, which wouldn't fit. I think it's all settled.
The binder bolt I have has a socket on both end, but since the ears on the frame don't have a slot for the key I think it's pushing in the end of the ear and not enough on the side of the post. I'll probably just file the key off of the bolt.