Hub & wheel question...

Maybe Phil Wood hubs are different but I've always found that freewheel and fixed sprocket threads are the same. It is only the width of the threaded part that are different.

Standard ISO freewheel thread is 1.375" isn't it? Perhaps that's why they say it'll fuck the threads, since yours is 1.370". I don't know if that .005" will damage the threads - now personally I would screw it on by hand and if it feels at all like it's tight or binding, then I wouldn't do it.

I've also heard that some sprockets (EAI specifically) have plating that is thick enough to damage the Phil threads - perhaps that is what they're concerned about.

Could you please recommend me some? They told me that the cogs have to be non plated as it'll damage the threads. They also told me not to use surly or east-asia (i think it's called) cogs as they're too thick. I'm going to bricklane on sunday so I'll probably check it out.