Coupling Plate – 2 Holes – 20×20 Aluminium Extrusion
Attach various pieces of 20mm slotted Aluminium extrusion together with this 2-hole plate.
Measures 40mm long, 18mm wide, 4mm thick. 5.3m drill holes 20mm apart so you can use M4 or M5 screws. You’ll want to use 10mm long screws to attach this to 20mm extrusion.