For sale are dual-sided bolts designed for mounting racks on Mafac brakes (CP or Canti) or on any other standard catilever or V-brake bosses.
These come in three sizes (length in front - 12mm hex bolt length - length in rear)
8 x 3 x 10mm 8 x 4 x 10mm 10 x 4 x 12mm
$17 (by Paypal) for a set of two including washers and acorn nuts, shipped
As seen on http://www.flickr.com/
Amir Avitzur
R"G Israel