Z Axis X-Carve top bracket to maker slide stripped out?

I was looking at the machine in use and the bracket was shifting with the acme threaded rod in use - I paused it and found it had stripped out the bolts and will not tighten at all. Still works but I am sure I need to fix this pretty fast… I think I should pull the Z axis maker slide and flip it over should still work the screws are the self threaders I know I pulled em on and off about 5 times for mods and adjusting a broken v wheel and such but did not think they would strip quiet so easy. It is aluminum tho… Anyone else notice them strip out?