General description 32Pcs 2020 Series 3-Way End Corner Bracket Connector for 6mm European T Slot 20x20mm Aluminum Extrusion Profile is designed for high strength and hardness, making it suitable for connecting 20 series metric T-slot aluminum framing profiles at specified angles. The suitability of the connector depends on the shape and wall thickness of the aluminum profile. If the fit is tight, a plastic hammer can be used for adjustment. Technical specifications Size: 20x20mm Material: Aluminum alloy Color: Silver Package Contents: 32 x 2020 T Slot 3 Way Corner Joint Brackets (Black) 128 x Screws Measurement allowed error: +/- 1-3 cm