U SUPPORT TYPE; ASTM A1018/A653/B633 STEEL MATERIAL; 7-1/2 INCH L SIZE; ZINC ELECTROPLATED FINISH; B22 CHANNEL USED ON; 1-5/8 INCH CHANNEL WIDTH; 7/32 INCH THICKNESS; HOT ROLLED PICKLED OILED PROCESS; (1) HOLE, (2) SLOT HOLE(S)