Inside-Corner Bracket Gray Unfinished Number of Mounting Holes 2 Overall Height 36 mm Single Nut Overall Length 36 mm Overall Width 36 mm Fastener Thread Length 20 mm Aluminum Fastener Thread Size M8 Inside Corner Bracket Style Open Includes Fasteners Yes 40 Series System of Measurement Metric Connection Angle For Slot Width 8 9/64 mm Includes (2) Flange Nuts (2) Hammer Head Screws