Hi I need to remove this light socket from a crystal chandelier I’m restoring. I need to replace one of the arms and I can’t seem to figure out how to get this weird screw loose. Everything I’ve looked up so far tells me to unscrew it but there isn’t a traditional screw it’s this weird Allan wrench shape on one side and completely smooth and flat on the other side. I hope I make sense. I need to fix this quick so any info would be greatly appreciated. 
Chandelier socket removal for arm replacement
socket
Related Topic
- Are light socket to outlet adapters safe for outdoor holiday lights
- Lamp socket question
- Electrical Receptacle – Baseboard Socket Plug Replacement Guide
- Socket Connector – Meaning of Socket Connector Labelled ‘A’
- Rewiring socket for lamp question
- Electrical – Socket Installation for UK Bathroom: Guidelines
Best Answer
That bracket is riveted on. You could drill it out, but you'll have no good way to reattach it to a new socket anyway. Often candelabra sockets come with pre-attached brackets like that (sometimes threaded for a pipe nipple, other times slotted for a screw - hard to say which that is). Best option would be to remove the whole thing together if possible and try to find a matching one at the hardware store (I know my local store has a good variety of such sockets with attached brackets from Servalite). You shouldn't need to drill out the rivet to remove the wiring.