Abstract: A cleat for tying together two or more structural elements in either one or both of a horizontal and a vertical plane. The cleat comprises a first set of protrusions located on a first half of a plate, and a second set of protrusions located on a second half of the plate, wherein the first set of protrusions are mirror images of the second set of protrusions. Additionally, both the first and second set of protrusions are arranged in rows, wherein each successive row comprises protrusions having a height less than the height of the protrusions located in the immediately preceding row. Furthermore, the protrusions in the various rows are staggered in position relative to the protrusions located in the other rows.