16-60 Stainless Steel Rudder head for 3-3/8" diameter. Features a 3/8" hole for clamping to the shaft. Rudder head size is 3-3/8", accepts 1/2" bolt for rudder shaft attachment, accepts 1/2" bolt for tiller head attachment with a tiller width of 2-3/8". Includes Tiller Straps and will receive a 3" x 3" Tiller Butt.