SQUARE TYPE; ASTM A1018 STEEL MATERIAL; ZINC ELECTROPLATED FINISH; 1-5/8 INCH; 1-5/8 INCH; 7/32 INCH THICKNESS; HOT ROLLED/PICKLED AND OILED PROCESS; 17 POUND PER 100 WEIGHT; 9/16 INCH DIAMETER HOLE SIZE; 1/2 INCH BOLT/ROD SIZE