Dimensions for McMaster-Carr flange # 43615k565 cast 316 stainless flange.....<br><br><a href="http://www.mcmaster.com/#cadinlnord/43615k565/=k9o8iv">http://www.mcmaster.com/#cadinlnord/43615k565/=k9o8iv</a><br><br>I need roughly 3 3/8" bolt circle, so this should work (after Dave drills the new holes).....bolt heads and washers should clear the "neck", and the back is flat.<br>
<br>This screwed on top of a 1.5" galvanized rigid EMT with the GS-065 thrust bearing on top and 1.25" masting rotating inside.<br><br>Should work, no?<br>