A few I came across when I was looking for some a while ago... HTH!
http://www.vwvortex.com/artman/publish/industry_news/printer_1900.shtml
http://bimecc-usa.com/main/index.php?main_page=index&cPath=39
http://www.manufacturers.com.tw/industrial-supply/Wheel-Bolts.html
some good info here,
http://forums.pelicanparts.com/showthread.php?t=397952
http://www.vwvortex.com/artman/publish/industry_news/printer_1900.shtml
http://bimecc-usa.com/main/index.php?main_page=index&cPath=39
http://www.manufacturers.com.tw/industrial-supply/Wheel-Bolts.html
some good info here,
http://forums.pelicanparts.com/showthread.php?t=397952