Monitor Support 4-Axis, Aluminum, Lacquer, Overall Height 236 mm, Overall Length 436 mm, Overall Width 100 mm, Fastener Thread Size M4, M8, Mounting Hole Diameter 5.3 mm, 90 Degrees , Monitor Mounting Type 4-Way Positioning Arm, Adjustability Rotate, Fastener Thread Length 12 mm, 16 mm, 25 mm, Black/Gray, Number of Mounting Holes 7, Includes Fasteners Yes