Originally Posted by
trainman999
go to the local hardware store tell them you want a 7/16 square key. take a file make one light pass on each corner it should drop right in you want a tight fit. If it wedges,knock it out from the back side with the axle or a punch.
100_3887 by
galon783, on Flickr
Good outside-of-the-box thinking.
Desperation can bring out the best sort of creative thinking in people!
I had a similar quandary working on a relatively modern freehub a while back, and I found that a 3/8" square-drive socket extension fit perfectly into four of the twelve(?) notches inside of the hollow bolt.
This also reminds me of using a twelve-point socket to apply massive torque to this Cattaneo-built frame's old, eight-sided Stronglight fixed cup.
A 38mm or 1-1/2", twelve-point socket fits
quite well on I'm guessing four of the cup's eight corners.
