How to mount headlight switch?

My '65 Dart's headlight switch was not in the dash when I got the car and there was no 'nut' or whatever fastener is supposed to hold the switch in place. Can anyone point me to the item?

I also have to get a new switch and the new ones at NAPA etc don't have a shaft on them. Can the shaft from the old switch be taken out and put in the new switch?

Thanks for any help. Jim
Author: admin