Replies

1. 
   saschafer | May 05, 2008 10:46pm | #1

   What is your tolerance? McMaster-Carr sells 9/32" (7.14mm) brass rod, 6ft long, for $14.15.

   If you don't need a huge amount, and the pieces you want to end up with are not too long, it's probably cheapest in the long run to buy some that's slightly oversized and have a machine shop turn it down.

   -Steve

    

1. 
   [email protected] | May 06, 2008 01:27am | #2

   Steve, I'm restoring a mid-century wall system designed by Poul Cadovius.  Two of the shelf supports have screws broken off in them.  I am having little luck removing them.  As the screws were aluminum, and the rods are brass, I'm afraid they may have electrolyzed together.  

   They are 7-mm and I would like to get some rod and just make new ones if possible. 

   If I went to a larger diameter rod, I would have to turn down the ends to fit into the holes on the standards.  So, I would prefer to find the 7-mm if possible.  If I can't find any I will have some turned down, but I'm afraid that they might be enough different to stand out. 

   Attached are few pictures of systems similar to the one I am working on. 

   
1. 
   JohnWW | May 06, 2008 01:51am | #3

   The difference between 9/32" and 7mm is .005" which will probably make no difference in the the fit and will be invisible to the eye. You could remove .005" from the rods diameter on one end in a few seconds with a fine file while you spun the rod with a drill.John White

1. 
   [email protected] | May 06, 2008 02:23am | #4

   John, thanks for pulling my head out for me.  I should have known that.

   Started taking allergy meds this morning and my brain currently is bearing a marked resemblance to Jello. 

   And, I have some 9/32 drill rod in the shop so I can check to see if I would even have to turn it down.  The rod should fit snuggly in the holes, so 9/32 may work fine. 

   Edited 5/5/2008 7:26 pm ET by Jigs-n-fixtures

2. 
   WillGeorge | May 07, 2008 12:14am | #5

   John You are so smart! Old metal worker here! Hech, chuck it up in a drill and a nice bastard file will do nicely!