Last week, when Jay (Jaycan) was here, I removed the epoxied bolt that the previous owner told me was only making intermittent contact. Jay suggested digging out the epoxy into the hole and started to do that. I finished using a picking tool to dig out that contact today. You can see the dug-out contact at the left bottom of the photo.
Jay suggested I either use a threaded tiny bolt with female threads on one end and screw it on the tip inside the hole -- he says they sell these in computer stores. I haven't found one yet. I suggested an alternative is to get a small metal tube, heat it so it expands, put it over the tip and allow it to contract to form a grip. Here's a cut-off tiny copper tube I tried for that purpose:
I tried that with a propane torch, and it didn't grip the stud. Can any of you suggest a way to attach a conductor to that broken contact? I think my next step after that's done will be to fill the hole with epoxy and simulate the other heating element terminals. On those, BTW, I'll replace the rusted parts with new ones.