This Hot Dipped Galvanized trailer axle U-Bolt Kit is designed to be used with 1 1/2” Square 1400# capacity axles and mounts diagonally across the axle holding the leaf springs on.  The leaf spring ubolt kit includes (2) Galvanized 1/2" diameter u bolts that are 2 5/8" wide inside and 3 9/16" long.  Also included in this kit are (2) mounting plates, (4) nuts, (4) washers, and (4) lock washers.