[Electronic M]

I haven't had to do this with a 15G socket yet (knock on wood) but I believe they are riveted together the same way 21" color sockets are riveted. I've had to deal with 21" sockets where the wires broke off inside the base. What I did was drill out the rivets(if the heads are not sunken grinding is a good option), carefully open the socket to avoid mixing up the wires, resolder the wire that broke and clean and tighten the worst contacts, then reassemble using nuts and machine screws the same diameter as the rivets. Not the simplest process but a little easier than connecting ~12 wires for a new socket.