Material steel, cadmium plated; 3.562 in. O/a length; 2.938 in. O/a width; 0.125 in. Thickness; 2 terminal mounting holes, 0.688 in. Dia, 2.000 in. C to c both holes; 4 plate mounting holes 0.240 in. Diameter spaced 2.000 in. Between hole centers on large side; 2.188 in. Between hole centers on width