Made of Bright polished exterior 304-grade stainless steel. Commonly used as deck hardware in highly corrosive marine environments. Overall Length: 5 inches; Thread length: 87.9 mm / 3-1/8 inch; Distance between centres: 35.7 mm / 1.4 inch; Stock diameter (Cutting thread): 3/8 inch Maximum safe load is 3,500 lbs. Marine City U-bolts are used to an eye bolt that would be too small or extra strength is required. Has a welded base plate to minimize possible corrosion and provide excellent sealing.