Lower hinge. Welded in thick wall steel. I think it was an id of 0.44 or 0.48 in. Welded, then bushings made from 630 bronze. I made them long 0.75 in. Flange is 0.062ish. It is magnetic. Hole was cleaned up with a drill a few thousands under 0.500. 0.500 in reamer. Pin is from a hinge kit. Zerk is std. Installed bushings with locktite. Plin needed some clearance for the zerk.