On Fri, 17 Dec 2004 20:43:06 +0000, J. Mark Wolf
wrote:

||
||Roger Shoaf wrote:
||
||"Seems to me that using a wooden screw for a vise is something you
||would do
||if metal were not available. The only time I have seen wooden threads
||is on
||broom handles painting poles and that is the usual point of failure."
||
||
||
||I've seen such threads on "decorative" nut crackers. It's a wooden cup,
||roughly the size of a coffee cup, for the nut, and a wooden threaded ram
||for cracking the nut.

I have a 3-legged stool with adjustable height via a large wooden acme thread.
Blonde finish, almost looks like pine. Whole thing cost me $10 new, so it
couldn't be anything exotic.
Texas Parts Guy