Hi Richard. They're both 10mmx26tpi. Japanese and most non-Italian European rear der. bolts and axles are 10mmx1.0mm or 10mmx25.4tpi. There's not a lot of difference between the two, esp. when there's only 4 or 5 threads in a der. hanger. A class "B" fit but it's done a lot w/ little worry or consequence. Cheers. Billy Ketchum; Chicago, IL; USA.
Can anyone confirm this ?
I was recently told that Campag rear track axle is same thread as Campag rear der. hanger thread. So, the Campag axle w/key-way can be used to clean-up the der hanger threads.
Chicago, Illinois; U.S.A.