Got my coilovers today, what's up with Megans rear spring perches?

[DeathBeard]

Hey all,

if you look at the bottom of the spring perches on the tein coilovers there is a nut that secures the rear spring perches to the beam, on the megans there is no such way to secure it, is it just supposed to sit in the beam, that's it? Does it rely on spring preload to keep the spring in the car? Looks a little sketchy