SPMC158-5PK Solar Panel Mid Clamps for 1-5/8 in. Steel Strut Channel, Solar Panel Kit with Mid Clamps and Cone Nuts for Mounting Solar Panels, Pack of 5

These are great quality! If you have 200w or larger panels, these are perfect for Unistrut or any other less expensive 1-5/8 in steel strut. There were very pricey, not gonna lie, but the quality is high and each 4pack comes with a spare!

Absolutely perfect! High quality. Only complaint is PROVIDE THE TOOL to tighten them down. That was a little annoying having to run to the store.The other person leaving a bad review because they change shape and slip off doesn't know what they're doing or their panel is the wrong size for these. It's possible they didn't line their unistrut up well either (like I did) so panels will sit in different positions and potentially cause installation hassles.They work perfectly for normal unistrut from Home Depot. Don't make the same mistake as me though and have your unistrut too far down or up on thePanels. Give yourself a nice foot or two from the ends of the panels. See photos to better understand what I mean.

These hold ok, but the threads are barely long enough. Make sure to measure your panel edge thickness and leave a few millimeters of "wiggle room." You'll want the space when trying to get the brackets started in the ustrut groove.

These worked great. I wanted to use unistrut as my track material. These were the perfect clamps for this usage. They're strong and hold the panels well.

Worked great in my application. MId clamps for installing three panels on the roof of my cargo trailer with unistrut channel. Not sure why a package of five, but I have a spare just in case now.

These are bulky compared to others. They work though.

clips arrived and function as intended with good overall quality. Id purchase again.

Best design ever. Who ever designed them, also installed them. Genius