1964 dart convertible parts needed

I dont need those, i need at actual metal part that bolts to the windshield frame

ok now your confusing me a bit. The only metal part that bolts to the windshield frame that acts as a latch part is the sun visor mounts and the plastic pieces go into that piece as seen in this picture
sunvisor mount.jpg

that slot you see is where the latch hooks into
sunvisor mount2.jpg
the hook for that slot
sunvisor mount3.jpg