US Patent 9193234 Hitch shank

A monolithic trailer hitch including a rack defining a plurality of apertures positioned in a recessed channel and integrally formed with a perpendicularly extending arm defining a cavity and a hollow with an end formed from a pair of opposingly biased faces. A brace is connected between the arm and the rack for structural support. The cavity is the larger of the two openings and is positioned more proximal the rack while the hollow is smaller and positioned more distal the rack, near an aperture configured to receive a fastener to secure the shank to a receiver and a tow vehicle.