Pro Tie 33702 SAE Size 462 Range 3-3/4-Inch-4-9/16-Inch Constant Tension Hose Clamp, 1-Pack Band and housing are stainless steel, screw is high strength galvanized carbon steel SAE Size: 462 Low Range: 3-3/4-Inch High Range: 4-9/16-Inch Screw Size: 9 mm hex head