Steel, aisi c1010-c1020, 0.91 in. Lg o/a, rectangular flange, 0.500 in. W, 0.500 in. W, 0.500 in. H, 0.540 in. Lg, body 0.311 in. Min 0.313 in. Max dia, 0.370 in. Lg, 1 hole 0.266 in. Dia, centered through top of flange, 1 hole 0.078 in. Diameter through body 0.250 in. From end, 90 degrees from 1st hole