I have a good idea how you would cut the male thread but how would you
get the matching female thread?

Andy Dingley wrote in message . ..
On 24 Jan 2004 19:46:41 -0800, (daryl1138) wrote:

Does anyone know of a source for large diameter 1-1/2"+ threaded
dowels.

Make them. If you're into the bench-vice size, it's not too much of a
chore to cut them by hand. It's easier than hand-forming threads in a
small screw.