🔧 Build smarter, connect stronger — your 20 series frame’s best friend!
This 8-piece set of 2020 series aluminum extrusion corner brackets offers precise 90° internal L-connectors with included stainless steel M4 screws and wrench. Designed for 20mm aluminum profiles, these unfinished brackets are perfect for industrial frames, 3D printers, CNC routers, and robotics projects, featuring panel-mount through-holes for secure assembly.
Finish Type | Unfinished |
Item Depth | 4.5 inches |
Mounting Type | Panel Mount |
Manufacturer | Tongling Hardware |
UPC | 796862232979 |
Part Number | TL-20BC-8 |
Item Weight | 2.89 ounces |
Product Dimensions | 4.5 x 3.2 x 0.78 inches |
Country of Origin | China |
Item model number | 20 series |
Size | 8set L bracket |
Style | 8Pcs Interior Bracket with Screw |
Finish | Unfinished |
Included Components | Case |
Batteries Included? | No |
Batteries Required? | No |
D**N
Great find
Very lightweight, and appears to be strong enough to get the job done. I searched and searched for good panel mount bracket for 20mm extrusion or 80/20 10 series extrusions and found nothing that wasn’t crazy expensive. I’ll definitely be buying these again.
N**C
Just need to know their limitations.
The media could not be loaded. Honestly, these are pretty nice depending on what you're going to use them for. I'm going to use two to hold this small lightweight monitor up. But even with only one arm, they seem pretty rigid. Wouldn't leave it this way, and I'll be adding a second arm but these will definitely work. I like that you can lift the spring loaded handles and adjust their position independent of tightening the tensioning bolt. This made things so perfect for my application as it allowed me to mount the monitor closer to the machine enclosure without having to worry about handle clearance. Note, I did have to modify two of the alignment nubs (I had to remove them with a dremel) in order to allow me to mount them in the orientation I have them on my extrusion. Other than the few quirks I mentioned above, these are fairly nice, and since I'm wanting to move the monitor angle, the tensioning is plenty tight for my use.
L**U
Thanks Rafi
Bought this I guessed it worked for his hack job project
P**V
Awesome corner brackets
These are great at the end of the day. Needed some work to fit properly though, there are some overmoulding spots that need to be ground down, and the relief in the corner is not deep enough to fit corner cubes, so you have to mill/file/grind them a little. Also every single hole needed to be tapped before anything would screw in, but they accomplish the goal after that.
N**.
Great!!!
Buy from these guys and Gals, great service and products
A**O
Enables rotation but does not lock to form stable angle.
I experimented with lock washers and even added steel tubing to limit flexing of the internal fork. The leverage is just way too high with 300 mm extrusions.
B**N
Good choice
These did great for what I was using them for. Thanks
B**S
Fits 2020 Series Vey Well
Fits 2020 Seris Aluminum profile very well. Tried others from Amazon, they all stuck and cannot be used. But this one works perfectly! Good job, the seller!
Trustpilot
1 month ago
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