Material-aluminum alloy 6061-t6 0.125 in. Thk-astm-b209, golden yellow chemical film finish mil-c-5541 class 1, 1.680 in. Long 0.750 in. Wide, 0.180 in. By 45 degree chamfer 2 places, 2 0.152 in. Diameter holes spaced c to c on lg 1.000 in., 1 0.116 in. Diameter hole 0.250 in. From bottom hole-width-opposite side