Wide 3x3 Inside-Corner Bracket, Silver, Anodized, Number of Mounting Holes 6, Overall Height 1 in, 9/32 in, Overall Length 1 in, Overall Width 2 7/8 in, Aluminum 6105-T5, Inside Corner Bracket Style Wide, 10 Series, System of Measurement Inch, Inside-Corner Bracket, For Slot Width 17/64 in