Hi Brian, They are called hanger screws. I checked two benches in my shop and both are different one was 1/4" and the other 3/8" so they can vary. It is best to bring a wingnut to the hardware store and get the right size hanger screw. Regards, Jack Houweling ----- Original Message ----- From: Brian Doepke To: pianotech at ptg.org Sent: Monday, October 26, 2009 3:41 PM Subject: [pianotech] Wing Nuts What is the standard size square bolt needed to replace the wing nuts used inside the benches to secure the legs? Brian P. Doepke, RPT President-PTG Indiana Chapter A.A.A. Piano Works, LLC Piano Tuning + Service www.aaapianoworks.com -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://ptg.org/pipermail/pianotech.php/attachments/20091026/5360882a/attachment.htm>
This PTG archive page provided courtesy of Moy Piano Service, LLC