67-69 Camaro Firebird 1/4 window track flanged nut
 

I have 5 sets of quarter window track flange nuts for 67 through 69 Camaros and Firebirds. They do not reproduce these nuts https://www.yenko.net/ubbthreads/pics...6_20.37.08.jpg
https://www.yenko.net/ubbthreads/pics...6_20.37.24.jpg
. Very hard to find. $60 per set (6 nuts per set) shipped to the lower 48