Renogy4 Sets of Solar Panel Mounting Z Brackets Lightweight Aluminum Corrosion-Free Construction for RVs, Trailers, Boats, Yachts, Wall and Other Off Gird Roof Installation, 4 Count

These might not be the cheapest set you'll find, but they are sturdy and comprehensive. They appear to be corrosion-resistant, which is definitely needed for outdoor panels.Most impressive was that they came with real roofing screws and a sealant. If you are looking to install your panels on a roof, here's how you do it: install the brackets on your panels FIRST and tighten them well. Then put the whole panel on the roof and screw them in place. Unscrew them and squeeze in the sealant, then screw them back in tightly. This will give you a water-tight seal.

These brackets are great for solar panels. The self tapping screws work great when mounting panels to super strut. None of the screws broke !I have ordered at least 10 or more of these kits. Would definitely order more if the need arises.

I’ve used these on my wood shop roof. One Cat 1 Hurricane and multiple tropical storms later, they’re still solid.Warning. Although the mounting screws have a rubber washer, I would NOT put them directly through roof sheathing alone. Guaranteed leaks in my humble opinion and likely not as solid. I first put down 1x6 PCV boards (stacked 2 high) that I screwed directly into rafters with 3” deck screws, caulked and flex sealed the leading edge. THEN attached these brackets to the PVC boards with screws provided.

Was able to attach to an all weather wood frame. Avoid all the work and cost of unistrut.

Very good

These brackets are the minimum that you could buy to install a PV panel and they are well made. The tolerances are perfect, they are shiny and look nice. I have a cheaper standard metal roof and I must make a spacer to lift the panels up another 1/8 inch to be surfaced mounted. I chose cork that I’ll cut to fit. That seems like a lot of nonsense. If they would make these taller, there would be no problem. That’s why I called these by the unusual title.

Universal fit. I've used these to mount Renology and Newpowa panels. For reasons not worth noting, I had to mount the panels on wooden frames made from pressure-treated 2x4s. Once the frame was assembled, I could just put it on a pair of sawhorses and mount the panels using these brackets. First, I firmly attached the brackets to the panels. Then I attached the panels - via the brackets - to the frame. Now they are standing up, 2 panels to a frame, against the sunny side of the garage. The brackets come with all the hardware you need.

Since they are made by Renogy, they are of course perfect for Renogy panels. Install is easy, though they need to be installed on the panels before they are screwed down to the mounting surface. Not much clearance between bottom of panel and surface when installed. For slightly curved surfaces like an RV roof, putting two on opposite sides near one end and then two on the other end (instead of the sides) enables the flat surfaces of the brackets to lay flat on the mounting surface.