Bracket is l shaped, 3.99 in. Long, 1.69 in. Wide, leg is 0.55 in. Wide, 0.125 in. Thick, a 0.159 in. Porm 0.010 in. Dia. Hole is located 0.20 in. From the end, with a like hole centered 1.875 in. Away, two 0.126 in. To 0.133 in. Dia. Holes are located 0.96 in. From the oppostie end, a 0.159 in. Porm 0.010 in. Dia. Hole is located 0.70 in. From the end of the leg, another 0.125 in. Dia. Hole is located 0.20 in. From the end of the leg, two holes are located in the end of the leg, one is a 5c unc-2 b 0.150 min full thd, the other is a 0.0619 in. Dia, 0.200 in. Min depth, material, aluminum alloy 6101-t6 astm b317-68