







🖤 Build Bold, Build Invisible — The Ultimate Corner Connector for Pros
This 20-piece set of black L-shape interior corner brackets, crafted from electrophoresis zinc alloy with a powder-coated finish, offers concealed mounting for 2020 series aluminum extrusions with 6mm slots. Complete with 40 set screws and a wrench, it’s engineered for durable, rust-resistant, and sleek industrial frame construction—ideal for 3D printers, CNC machines, and robotics projects.





| Finish type | Powder Coated |
| Unit count | 20 Count |
| Item depth | 0.2362 inches |
| Mounting type | Corner Mount |
| Manufacturer | BLCCLOY |
| UPC | 796862233273 |
| Set Name | 20pcs set |
| Part number | Tongling-JC-20 |
| Item Weight | 222 g |
| Product Dimensions | 2.59 x 0.94 x 2.59 cm; 222 g |
| Item model number | 2020 series extrusion M5 |
| Size | 20pcs black with screws |
| Color | Black |
| Finish | Powder Coated |
| Item Package Quantity | 1 |
| Batteries Included? | No |
| Batteries Required? | No |
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