I've replaced a couple of these. I can't find it in "Piano Parts and Their Functions" though it is a very thorough reference book. Yamaha sells them. To the best of my memory, it may be called a "leg plate" or "leg bolt plate?" CAll Yamaha and they should hook you up no problem. <div class="gmail_quote">On Tue, Jul 12, 2011 at 3:02 PM, Gary <<a href="mailto:gmcc@charter.net">gmcc@charter.net</a>> wrote: <blockquote class="gmail_quote" style="margin: 0pt 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;"> 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 </blockquote></div>