DARUMA bolts are used with Honjo fenders to mount the fender to the bicycle frame. Mark Vande Kamp is building a rack for his bike and the rack needs to mount to the same point as the fenders. A goal is to make the rack remove with just a couple of bolts. I made these replacement Daruma bolts which have an extra threaded portion for holding the rack. There is a good photo of a normal Daruma bolt here (linked from Jitensha's page on Honjo fenders): http://www.jitensha.com/eng/images/lngshrtdrmascrws.jpg It is a pretty good simple lathe project, so I thought it would be a good thing to document. It has facing, turning and drilling and uses both the 3-jaw and 4-jaw chuck. The bolt is made of 303 (free machining) stainless steel. This was my first experience using it, it machines pretty nicely.