🔧 Build smarter, connect stronger — the backbone of your next innovation!
This 10-set connector kit features solid cast aluminum 90° corner brackets, galvanized M5 T-slot nuts, and M5x8mm hex socket bolts designed for 20mm x 20mm 2020 series aluminum extrusions. Engineered for durability and corrosion resistance, it’s perfect for professional-grade industrial frames, 3D printers, CNC routers, and robotics projects.
| Item Depth | 28 millimeters |
| Mounting Type | Corner Mount |
| Manufacturer | Tongling Hardware |
| UPC | 796862233129 |
| Part Number | HIMP-060622-B0855CRFWQ |
| Item Weight | 8 ounces |
| Package Dimensions | 4.7 x 4.5 x 0.8 inches |
| Item model number | HIMP-060622-B0855CRFWQ |
| Style | 10Pcs 20x28 Bracket with M5 Bolt Nut |
| Item Package Quantity | 10 |
| Head Style | Socket, Hex |
| Measurement System | Metric, Imperial |
| Batteries Included? | No |
| Batteries Required? | No |
K**.
Great Product
I love how easy and stable it was. I used it to add a seat to the rear of my golf cart. Worked great.
J**W
Fast, Just as described.
Fast, Just as described.
M**G
These are the good ones!
Super strong, nice 6mm bolts, easy to thread every time. These are the best 90 deg fitting that I have found. I'll use these and only these. These are the good ones for any 2020 project.
W**O
Wish it wasn’t made of cast aluminum
The corner idea is good but prongs would break off if there was any shifting while fitting or moving due to shearing. Luckily I was able to reuse the broken corner brackets for the door, with a bit of sanding smooth and painting. It would be great if they were made of something stronger. Fit very well w the tbar 2020s, however. The parts (set screws, hex wrench) were complete and very handy.Not recommended for anything that might need to be moved regularly.
A**T
Excellent corner pieces for a frame
While converting one of my old 3D printers into an enclosure, I decided to replace all of the plastic printed parts. I swapped out the corner triangles for these metal ones and it's far more solid now, no flex whatsoever. As an added benefit, they provide a small "shelf" at each corner to sit a platform on.
N**I
Perfect Fit and Strong Hold
Used these to elongate my laser bed. Perfect fit and strong hold. No jumping or skipping when crossing the joint.
C**
Good value loved the fasteners
The twist lock fasteners were great and I could pop them in anywhere and not just from the end
D**E
Awesome!!
From appearance these are very Heavy duty and perfect for multiple applications. Will buy more in future .
Trustpilot
3 days ago
1 month ago