Parts Unlimited Tie-down Bar Crank 4504-0050 Fits over the skis and secures them directly to the trailer Tie-down bar available in steel or aluminum with black vinyl sleeves Crank measures 1/2in. dia. (1/2in. x 13 thread pitch) and is approximately 101/2in. L 2in. x 4in. x 1/8in. crank plate replaces stripped or corroded crank plates (1/2in. x 13 thread pitch) Crank and plates are gold E-coated to resist corrosion