I think the two cheapest places I found were: http://www.probolt-usa.com/Products/000400030004 http://www.corsemeccanica.com./m8_flanged_hex_bolts.htm I may have found some at $4/bolt for the M8 x 16 but there maybe a minimum order of 100 required. Still emailing back and forth with the guy. > You missing link for cheap place :)