It's called the leg nut in an old parts list I have, and it's part no. 12-1. But that was in the 80's and I think they have revised part numbers by now (probably many more digits). --David Nereson, RPT <div class="gmail_quote">On Tue, Jul 12, 2011 at 6:19 PM, Joseph Garrett <<a href="mailto:joegarrett@earthlink.net">joegarrett@earthlink.net</a>> wrote: <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;"> Gary said: "Yamaha C3, when screwing the leg bolt on, it goes up into a round piece of metal with a threaded hole situated in the keybed. I need one, but don't know the name. Hope my description makes sense; I should get with the 21st century and get a phone with a camera. thanks all," gary, A couple of names come to mind: 1. "T" Nut 2. Rosan. Both are made to be inserted into wood, thus providing a mechanical, (metal), thread (female), for attaching something to the main body. Having said all that, I suspect that Yamaha, (aka Asian) Manufacturers, probably have a different name.<G> Hmmm? Just checked my Watanabe Musical Instrument catalogue...not listed. Have fun with that one.<G> Joe Joe Garrett, R.P.T. Captain of the Tool Police Squares R I </blockquote></div>