<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"> <HTML><HEAD> <META http-equiv=Content-Type content="text/html; = charset=iso-8859-1"> <META content="MSHTML 6.00.2900.2523" name=GENERATOR> <STYLE></STYLE> </HEAD> <BODY bgColor=#ffffff> <DIV><FONT face=Arial size=2>I use an external tooth lockwasher = under the plate.  The reason:  I don't want the hanger bolt to turn in = the rim when I tighten the nut on top.</FONT></DIV> <DIV><FONT face=Arial size=2></FONT> </DIV> <DIV><FONT face=Arial size=2>Carl Meyer<BR>PTG assoc</FONT></DIV> <BLOCKQUOTE dir=ltr style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial">----- Original Message ----- </DIV> <DIV style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: = black"><B>From:</B> <A title=terry@farrellpiano.com = href="mailto:terry@farrellpiano.com">Terry</A> </DIV> <DIV style="FONT: 10pt arial"><B>To:</B> <A = title=pianotech@ptg.org href="mailto:pianotech@ptg.org">Pianotech</A> </DIV> <DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, January 08, = 2005 8:34 AM</DIV> <DIV style="FONT: 10pt arial"><B>Subject:</B> Re: seeking wood = screws</DIV> <DIV><BR></DIV> <DIV><FONT face=Arial>Why do you put a washer on top of the = up-side-down lock nut that goes on the backside of the plate - assuming of course that = the nut has enough horizontal surface area to mate with the plate (and not = want to fall through the hole)? I would just be afraid of a potential = rattle/buzz if one of the assemblies got a little loose (I realize that none should = be). I just haven't found that to be needed. I do put a washer on the top = though - but mostly to protect the plate finish while tightening the acorn nut = on top.</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>5/16-inch hole gives me a nice very snug fit.</FONT></DIV> <DIV><FONT face=Arial></FONT> </DIV> <DIV><FONT face=Arial>Terry Farrell</FONT></DIV> <BLOCKQUOTE style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; = BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px"> <DIV style="FONT: 10pt arial"> </DIV> <DIV><SPAN class=906561315-08012005><FONT face=Arial = color=#0000ff size=2>All this talk of screw sources has had me browsing some of = these sites. Very cool. I've always tried to maintain an organized supply = of various screw types and sizes which has been a huge asset. But it is = not always easy to get big boxes of the sizes you want any more. Most = places only sell the little 15 piece plastic packages (very expensive = way to buy screws).</FONT></SPAN></DIV> <DIV><SPAN class=906561315-08012005><FONT face=Arial = color=#0000ff size=2></FONT></SPAN> </DIV> <DIV><SPAN class=906561315-08012005><FONT face=Arial = color=#0000ff size=2>Anyway, I have been wanting to do the plate suspension = trick for adjusting downbearing. Del spoke of it at the recent Indy = conference. This involves threading socket cap screws (headless bolts with recessed = allen socket) into the inner rim, running down a lock nut upside down with = a washer on top (a sufficient clearance well counterbored into the soundboard), the plate lowered onto the washer, a chrome washer and = acorn nut on top. The height of the plate can then be easily raised or = lowered by removing the acorn nut and turning the stud with and allen wrench. </FONT></SPAN></DIV> <DIV><SPAN class=906561315-08012005><FONT face=Arial = color=#0000ff size=2></FONT></SPAN> </DIV> <DIV class=OutlookMessageHeader align=left><FONT = face=Tahoma><FONT size=2><SPAN class=906561315-08012005>Attached is what I = ordered. I got the hanger screws just for fun. If the machine thread doesn't work well, = which Del said it would thread right into the wood, I can always fall back = on the hanger screws with their lag thread. </SPAN></FONT></FONT></DIV> <DIV class=OutlookMessageHeader align=left><FONT = face=Tahoma><FONT size=2><SPAN = class=906561315-08012005></SPAN></FONT></FONT> </DIV> <DIV class=OutlookMessageHeader align=left><FONT = face=Tahoma><FONT size=2><SPAN class=906561315-08012005>Does anyone have a = recommended hole size to drill the rim for the 3/8" machine thread to screw into?</SPAN></FONT></FONT></DIV> <DIV class=OutlookMessageHeader align=left><FONT = face=Tahoma><FONT size=2><SPAN = class=906561315-08012005></SPAN></FONT></FONT> </DIV> <DIV class=OutlookMessageHeader align=left><FONT = face=Tahoma><FONT size=2><SPAN = class=906561315-08012005>Blessings,</SPAN></FONT></FONT></DIV> <DIV class=OutlookMessageHeader align=left><FONT = face=Tahoma><FONT size=2><SPAN = class=906561315-08012005></SPAN></FONT></FONT> </DIV> <DIV class=OutlookMessageHeader align=left><FONT = face=Tahoma><FONT size=2><SPAN = class=906561315-08012005>Dean</SPAN></FONT></FONT></DIV> <BLOCKQUOTE><FONT face=Arial size=2></FONT> </BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTM= L>