Zhengmy Solar Panel End Clamp Mounting Z Bracket Mid Clamps Aluminum Rail End Clamps Clips Adjustable Panels Grounding Gutter Kit for Pv Mounting System Install Hardware Fasteners Accessory(10 Pack)

I bought these adjustable height, extruded aluminum clamps to hold down some really old Solec model S-4233 solar panels.From the seller's details, it looked like they might not fit around the aluminum side railing of my panels but I took a chance and they do fit.

Well-made brackets. The adjustable height feature is nice to have. Good value for the money.

4/5 stars because the included Allen head screws are subpar. I replaced with 1/4" X 20 screws and superstrut spring nuts. Worked perfectly. They are sturdy enough not to worry about breaking...unless you use an impact driver to nut them down. Don't do that.

This fits the Renogy panels perfectly.

Fits perfectly and holds panel down tightly.

The reviews here stating it fits standard strut are completely wrong. As you can see in the photo the threaded block is way too small to fit standard strut. You need to go and buy strut nuts and bolts to make these work. Do not assume this will work with strut by the description and reviews. It will not

I used two lengths of unistrut as rails and these along with others and it turned out great. They hold great no getting lose at all after 3 weeks of driving

Been in place for about four months, no rust, no shifting, no visible damage, toleranted some storms.