Hum...not really enough information, although, if you really mean "cast" perhaps you also mean "NO" stress. Also, how about an idea of how big "small" is? One thing you could do, for example, is pick up some 1/4x20 bolts that are about 3" long. Since these days, they only thread about an inch of the stock, that would leave you with a nice, 2" bolt blank. You can also find smaller bolts of the same length... Regards Dave Mundt