How to connect T-Slot Aluminium extrusions

T-Slot 40 x 40mm - 40 Series - HEAVY Duty t slot extrusion aluminum Home · 15QE1515 – ″ x ″ Smooth Heavy T-Slotted Aluminum Extrusion $ telly reels slot T-Slot; Profile Type Single; Weight per Unit Length lb-ft; Extrusion Texture Grooved; Material Aluminum 6105-T5; Profile Height 1 in; Overall Length 97 in

tslot structural framing 100% Compatibility with All Leading Manufacturers' Fractional and Metric T-Slotted Extrusions Parco T-Slotted Aluminum Extrusion has over 80 aluminum