2020 Aluminum Extrusion Connector Bracket Set Included 8PCS Joint Plates,1Pcs M3 Wrench,40Pcs M5 T-Slot Nuts and 40Pcs M5x8mm Hex Socket Cap Screw for 2020 Series Aluminum Profile 3D Printer

I think the kit is great. To do the whole printer however you need two sets I didn't realize or think about that. I think the quality is fantastic it came with plenty of screws and t nuts. For those who complain that it's missing screws and t-nuts, if you tap the holes on the ends of the extrusions, you don't use t-nuts. I ended up with extras in the end. I haven't had any issues as of yet, with the t-nuts breaking. I didn't go crazy over tightening them. I bought the kit twice not because I thought it was great but because I didn't realize I needed more pieces however I believe the kit turned out to be great and I'm glad I purchased it. I admit there is definitely a flat side of these brackets. I put the flat side towards the frame. The front edges are slightly rounded more so so I let them face outwards. No sharp edges.

They certainly didn't put much effort into the product description but these are pretty legit. They're a lot better than painted brackets. They're 3.5 mm thick matte black anodized blasted aluminum, so they've got a little bit of a 200-grit feel. They're kinda light given how thick they are. And they're not magnetic. Because they're aluminum. The holes are M6. They don't quite fit 1/4" bolts. They make your other brackets look kinda bad.

I needed a few plates they are well made and look to have power coating on them. If I need more I will buy these.

This was used on a project where 8020 extruded aluminum T-slot structures were used to build a stand. These T plates were used to join legs together for a stand. There are other methods to join struded members at a right angle, but this joint is super strong, yet lightweight. I have used these T plates before and they are easy to assemble. Because of the gusset plate design, this joint is stronger than other methods. I have used them in the past and will use them again in a similar application requiring a strong joint.

Good quality and economical. These worked great for my 2040 extrusions.

Very well built product but I am shorted two M5x8mm Hex Socket Cap Screws.

Exactly what we were looking for. Nice coating and heavy duty. Highly recommend.

The fit and finish is good it's obvious what they are designed for and now it's my preferred method

Was what was described and perfectly fit my 6030 extrusion frame. It also had some tolerance for adjustment of required.

Works exactly as expected. Comes with all the hardware to use all 8 of the brackets. All of the pieces are dimensionally consistent. Powder coat finish is clean and even. Everything came bubble wrapped. Very lightweight and strong. Thumbs up, would buy again.

Great, Just what I needed to reinforce my SIM RIG.

I used the L connectors first and these brackets to strengthen the structure

Exactly as described, with accurate quantities of parts