1969 roadrunner tail light extension nuts?

[Nsane]

What is the correct fastner to mount the tail light extension to the Qtr pnl? they were off the car when i got it and nothing is there? Is it a speed nut of some kind? Please help a pic would be awsome if someone has one.

 

[Moparparts]

I have those pm me for pics

 

[Dad's69RR]

I have those pm me for pics

Do you still have some of these? Need 6 if you have them.

 

[Big D A12]

These are what you are looking for. Where in WI are you? PM me.

D