Steel per ams 6350, cadmium plated per ams 2400; 4 holes across top 0.217 - 0.225 in. Dia, outside holes 6.750 in. Apart c-to-c; o.625 in. W, 0.062- 0.072 in. Stock thk; legs either end 2.125 in. Lg, hole through each foot 0.279 - 0.288 in. Dia, length c-to-c 6.750 in.; right angle triangle braces either end 0.056 in. Thk; attaches to junction box
