Sea-Dog Line - Stainless Steel Stern Eye - 3/8" - Large Plate - 0801351. These Stern Eyes are for use as a tie-down point on your boat's stern. Robust backing plates for added rigidity in water ski tow applications. 3/8" and 7/16" shafts have rolled threads. 1/2" stock has cut threads. Constructed of corrosion resistant machined 304 stainless steel. Includes adjustable finish nuts, which provide superior performance over crimp ring style stern eyes.. Machined 304 Stainless Steel. A - 3/8". B - 3-1/2". C - 1-1/16". D - 4-15/16". E - 1-7/16"