20×20 L-Type Internal Corner Bracket – Hidden Joint Fixed Block for 2020 Aluminum Extrusion

Overview 

When building structural enclosures or precision motion gantries, external brackets can get in the way of sliding doors, acrylic panels, or linear guide rails. Our 20×20 L-Type Internal Corner Bracket provides a rigid, hidden 90 ° connection without occupying external space. Precision cast from high-strength zinc alloy, this right-angle fixed block slides directly into the alignment slots of two intersecting 2020 profiles and locks firmly in place using two hidden grub screws.

Key Features

• Flush Hidden Aesthetics: Sits completely concealed within the profile channels, allowing you to mount flush paneling or glass windows directly over the corners.

• Heavy-Duty Zinc Alloy: Engineered to withstand high structural twisting moments and structural vibration without loosening.

• Double Grub-Screw Locking: Features two pre-tapped holes facing inward to bite down hard onto the extrusion walls for a slip-free mechanical connection.

• Easy Alignment Guide: Self-aligning design naturally squares your profiles to a perfect, true $90^\circ$ angle during assembly.

Technical Specifications