Hello all.  In answer to Chris Carlisle's question, in building a band
organ the source I used for small black oxide wood screws to attach
pipes with pipe ties was McFeely's.  Here's a link to a particular size
that I used, a #4 x 1/2" black oxide pan head screw:
  http://www.mcfeelys.com/product/0404-PSK/

Be sure that you have a small square drive to attach these with, which
they sell as well.  I prefer the square drive over other types for this
application.

John Bartlett
Woodruff, South Carolina