yeesport 90 Degree Gusseted Fittings, Carbon Steel Q235 4 Hole Right Angle Connector Brackets for 1-5/8" Channel, 4" x 4" x 1-1/2" Gusset Corner Brace Fasteners for Unistrut Connection (4)

I return them as they were too large, but they were very heavy duty.

What I liked was how heavy-duty they are, holes line up correctly with unistrut, and the price was reasonable. Disliked the fact that I had to waste a lot of time and energy using a file to enlarge holes. Doing so removed coating creating a place for rust to start. Also, mine are not a perfect 90°. I would recommend tightening the 2 bolts closet to the bend, then evenly tighten the others.

Perfect for my project!

They aren't welded the way they show them in the pictures, which causes the angle to be off, not a true 90 degrees. The pictures show them welded on the inside of the corner, but all 12 that I received are welded on the outside of the corner. This creates a ridge along the corner that makes the corner be off by a couple degrees. If the were welded the way they are shown in the pictures, I believe the angle would be closer to a true 90. They will work ok unless your project requires precision angles.

Very heavy duty commercial grade. Well finished with no burrs. Angles are correct. Excellent

It says they accommodate 1/2” bolts. They don’t. This was critical for my application. Disappointed. And as indicated by other buyers, they’re not consistently 90 degrees, which renders them useless for my application.

These brackets are shown in the pictures as being welded on the inside which means they would typically fit a true 90 degree angle. However, they are actually welded on the outside where you are UNLIKELY to find a true 90 degree angle. So it is NOT a right angle connector.

This always has been my favorite tool to hold up the shelves. 90 degree support give me more trust into the shelves! This is perfect size for bathroom shelves!