At 1/10/2010 08:55, you wrote: >Ouch. Maybe a regular nylon lock nut would work acceptably well and be a >little cheaper? Isn't the outer sleeve (the one that the lock nut threads >onto) slotted? If so, will it tighten up enough to keep the shaft from >being turned if you just use a regular nut?
The outer 1/2"-20 threaded sleeve is slotted, but doesn't appear to be tapered. I don't have one handy to try it, but I think a plain 1/2"-20 nut would just thread down the sleeve without compressing it, which creates the locking action. Hard to tell if a nylon lock nut would generate enough pressure to provide an adequate lock of the tuning rod; I think not. Sal's idea of using small hose clamps is starting to look good ;) Bob NO6B

