Solar Panel Mid Clamps Panel with Hex Socket Head Cap Bolts Spring Washer and Slider Nut Solar Mid Clamp for Solar Panel Mounting,4 Sets

We used these to help hold down solar panels on our travel trailer and they worked great!

I had to replace the bolts and strut nuts because they were for a small profile strut. I needed bolts and strut nuts for 1 5/8 unistrut

I have two decent sized solar arrays in my back yard. One has six panels, the other has 4. These are 275 watt panels, so they are physically big. In the spring I’ll be adding another array of five, 275 watt panels on my side yard. I build my own array supports and I use “U” channel for the panel bracing. In the past I have made diy panel brackets, which work fine, but to be honest, just using the things that are made for panels is a lot smarter. Oh, and not much more expensive than the DIY route. So, I got these for the next array. I already have some and needed a few more.These are well made and fit the slots perfectly. They get 5 stars. If for some reason they get weird over the next few years and grow horns, then I’ll change my review, but for now, I like them.Note: I have been an Amazon customer for almost 20 years. I write all of my reviews to reflect my personal observations and opinions on a product. It matters not if I have purchased the item myself or if it was provided to me for review. My goal is to provide other potential customers as much real-world knowledge as possible to make an informed decision. In most cases I will return to my review in 6 months or less to see if I should alter my original observations. In no case will the cost of a product influence my opinions at all. In addition, I will try to include multiple images and or videos on each product, if practical.

These do not fit strut. you will have to buy new bolts and bottom nuts that fit the strut doubling the cost of these. Also you can only use 2 of the 4. 2 of them come with a long bolt the other 2 come with a short bolt. Every pack bought from them were this way.UInacceptable.

I got these to hold down my 100W solar panels. They work great and were very easy to install. I'm quite certain I will be getting more of these.

These didn't work out for my panels, but they seem to be well made. There are 2 short screws and 2 long screws. It could be an issue if you need 4 longer screws.

These are good aluminum mounts but I needed to buy 2 longer bolts.

I picked these clamps up in the event I needed something in a pinch as I keep an assortment when doing repair work. They have a solid aluminum block and non magnetic (assume stainless) and keeping an assortment makes it easier to service different rack styles in the event the homeowner is missing a clamp. I liked that they fit in most standard rail slots and they have a ribbed clamping surface. The bolt is good for most 35 mm panels.While this is a review of a free or reduced price product, it is an honest review of the product, no different than if I purchased the item at full price.