Material corrosion resistant steel, 1010, qq-s-636, cond 3; o/a dim. 0.312in. W; 0.0279 to 0.0319 in. 22 ga thk; 1 hole ea end 0.160 in. Diameter thru, center to center 1.375 in.; 1 center hole 0.196 to 0.199 in. Dia; 1 hole ea side center hole 0.096 to 0.099 in. Diameter thru; surface treatment, black oxide, usa 5-0-2c, type iii, cl a, grade i