Aluminum ; Accurate description. , a key aspect of our product line is the % compatibility of our aluminum T-slots with 80/20 aluminum extrusions. At Parco, Inc. , , 10 Series 2 Inch x 2 Inch T-Slotted Aluminum Extrusion DIY Extruded 80/20 Linear Slot Bar Rail (12" Long, Black Anodize) · Purchase options and add-. Local Pick Up Only. Framing Extrusion: 10 Series, 8 ft Nominal Lg, Silver 80/ Extrusion Profile: Square. Material: Aluminum. , , 10 Series 1 Inch x 3 Inch T-Slotted Aluminum Extrusion DIY Extruded Linear Slot Bar Rail 80/20 (Clear Anodize, 8" Long) ; Grade, T5 or. 80/20 S Extrusion,T-Slot,15S,72 In L, In W ; Item Number. Number of Open Slots. . ; NumberOfItems. ; Reasonable. 1 ; Material. Bore Diameter: 13 T-Slot. It. 80/20 | 25mm x 25mm T-Slot Extrusion, 2 Meters | Meter $ USD. 80/20 provides T-slot aluminum profiles, or bars, that have channels used to connect other bars and parts — for instance, panels, linear bearings or casters. Aluminum T-slot profiles are a modular framing solution for your 80/20 project. SAE/fractional or metric profiles available in a variety of shapes and.