PST lower control arm pivot shaft, dimpled bolt question.

I do not like what it did to those first few threads. If it were me, I'd run a tap thru the nuts first, and remove much if not all of the swedging. If you're worried about the nut backing off add loctite. Be aware though, you'd be adding the loctite and torqueing the pivot nuts, after the car is resting with all four tires on the ground, and torsion bars are adjusted for final ride height.