This link bracelet has broken on me twice now and the first time I found the little metal peice that went in there to put it back together and somehow since it was bent a bit in the middle it stayed. However now I don't have that little metal rod to fix this? What do I do?
Your pin has worn out so you need to fashion a new one out of the same size wire as the original one. Form a ball on the one end with a torch, use a rivet forming block, then file it to size, insert it into the original link and hammer the one end to swage it out a bit and your job should be just about complete. You should be able to make it match the existing ones so that you can't tell that you have a new hinge pin in place.
You may search about How to Repair jewelry? in internet,or go to the nearest repair shop.Otherwise you may visit this page,this will help you