Sunroof hardware question

[cevallos.j]

Does anyone know what the name of the bold and half circle nut would be or where I can find it? Im completely lost on finding a replacement!

Thanks in advanced

[Len 911]

If you are missing one blow some compressed air from the back of the car thru the drain tubes. I thought I had lost mine but they were in the drain tube and blew out when air was applied. I did have to make the little bushing but not hard just used an old nut and ground it down on a belt sander until it just fit. I used the other side as a reference for size, Works like a charm.
I'll send you a PM for a contact who may give one up.