Solar Panel Mounting Z Bracket -- Set of 4

It's a good kit but I swapped out the included lock washers and nuts for nylon insert type lock nuts to be more certain they don't loosen. I'm using this on the roof of my RV and I don't want my solar panel escaping while we're rolling down the highway.

They are strong, and the Renogy panels allow adjustments to fit the frames I have made to allow me to move the panels around on the roof. I am adding panels, as I calculate the amount of energy and storage I need. After I design the layout of the panels I have, and the ones I get in the future, I do not have to worry about leaving holes in the roof, and when my goal is achieved, I will permanently attach the frames to the roof.

I have an opened a box yet so I will come back but so far I don't have any complaints