Machine Threads in Pinblock, was WD-40

[Farrell]

Re: Machine Threads in Pinblock, was WD-40Hi Ron!  I also use coarse thread as you do. However, I have tried tapping the maple and found that it made the hole too big - I used the proper tap for the given machine screw. I figured that the maple must have enough give in it (compared to metal), that caused the poor fit. I've gone to simply drilling a hole a little smaller than the thread and simply running a buttered (wax) machine screw into the hole (just like one does with a wood screw). I seem to get the nice tight fit that way. Do you find that you machine screw have a snug fit after tapping the hole?

Terry Farrell
  ----- Original Message ----- 
  From: Ron Overs 
  To: Pianotech List 
  Sent: Tuesday, June 17, 2008 4:48 PM
  Subject: Re: Machine Threads in Pinblock, was WD-40


  Fenton,


    . . . Would you recommend a fine or coarse thread?


  Always course threads in wood. We use the regular tapping tools after drilling the minor diameter.
  Ron O.
-- 
OVERS PIANOS - SYDNEY
     Grand Piano Manufacturers
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  Web http://overspianos.com.au
  mailto:ron at overspianos.com.au
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