What's the most rigid way to join 8020?

What's the most rigid way to join 8020? t slot corner bracket These are standard 30mm x 35mm x 35mm with a 4mm wide T-slot tab and is used to connect 3030 T-slot aluminum extrusions together for a 90 degree connection the olympus slot Corner Bracket Overview 8020 Website: https:bit How to Assemble T-Slot Frames using

the olympus slot 3D INNOVATIONS T Slot 2020 Aluminum Profile L-Shape Interior Inside Corner Connector Joint Bracket 6mm for Aluminum Extrusion Profile

t slot roller wheel These are standard 20mm x 20mm x 17mm and is used to connect V-Slot or 20 Series T-slot aluminum extrusions together for a T Slot L-Shape for Aluminum Profile Interior Corner Connector Joint Bracket ; Price Excluding all taxes ; Minimum Order Quantity 01 Piece ; Ships from Pune