The B-Tech BT8390-VESA200T/B is a pair of tilting interface arms for the System X range, used to hang small and medium screens on BT8390 horizontal mounting rails. They suit screens up to 47" and 70 kg with VESA and non-VESA fixings up to 200 mm vertically, and tilt up to +20 degrees in 5 degree steps via tool-less thumbwheels. Levelling screws adjust screen height, safety screws deter removal, and the arms can be positioned anywhere along the rail.