Koni SA ?

I just got a set of Koni SA shocks for my 95. I ran into a problem with the rears. The lower shock mount has different threads than the shocks currently on the car. The konis did not come with their own nut. Does anyone know the size and thread pattern so that I can pick up a new one at the hardware store?

Thanks

Take a shock to the store with you.

mine went in fine with the stock hardware.