Unistrut P1325 EG 90 DEG Angle Fitting, 4 Hole, ASTM A575, A576, A635 Or A36, ASTM A1011 SS GR 33 Steel, Electro-Galvanized Conforming To ASTM B633 Type III SC1, 9/16 IN Hole Diameter, Hole Spacing: From End: 13/16 IN, On Center: 1-7/8 IN, 1/4 IN Stock Thickness, 1-5/8 IN Width, 3-1/2 IN Length, 4-1/8 IN Height, For Use With Any 1-5/8 IN Channel