68 Charger - what do the 1/4 glass bolts look like?

I couldnt find anything in the search results about the quarter glass attaching bolts. I know the thread size but I dont know what the head looks like and cant identify it in my coffee cans of bolts from the disassembly. I have what is left from the rubber washer and rubber tube that goes around and into the holes on the bottom of the glass, they are shot and will have to fabricate something, but does the bolt have a built in washer? Any help would be greatly appreciated as I want to do this on Friday Thanks..

They have a large thin metal washer, roughly 1 inch in diameter if I remember correctly. Bolt head is 3/8 or 7/16.

The bolt thread is 1/4-20 and about 1" long, maybe 1 1/4". They are easily broken off in the alum frame they are attached to because of the corrosion. They have an over-sized conical flat washer attached to them.I may can get a pictures tomorrow.