Between matt aluminum sheet qq-a-355 2024-t4; o/a dim. 1.375 in. L, 0.307 in. W and 0.317 in. W , 0.090 in. H; with two 0.157 in. Dia. Holes spaced 0.187 in. From each end to each hole center; holes spaced 0.995 in. And 1.005 in. center to center; with slot 0.688 in. L, 0.156 in. Deep