BiFold Door

I have a top pivot bracket on a bi fold door that doesn't hold anymore. The problem that I have is everything that I've bought or found online is 5/8" wide. This house was built in '64, so the pieces that it needs are only 1/2" wide. Any idea where I can get something 1/2" wide? Bending the 5/8" piece didn't work.  
I've attached a photo of the bracket that I currently have.  As you can see the framing is starting to get beat up pretty quickly with my kids and I having to keep putting the door back on.  There are two metal plates that are 1/2" wide with a screw on once end and a plastic C clamp between the other side of the two plates.  The C clamp has a broken piece, therefor the dood keeps falling out of the clamp.  I've checked online and in stores with no luck of a replacement part.  I contacted a friend of mine that I hoped had a different direction for me to take, and he suggested your website.  I got on there but couldn't find anything that may have worked.  I'm open to other suggestions as well if you have any suggestions.  Thank you again for your time.    

Here are the pictures that you requested. Let me know if there is anything else that would be helpful.  

I apologize for the pictures, I was sending the pictures requested through the email and not this discussion. Here is the picture that you asked for. Sorry for any confusion.