Pro Tie 33526 SAE Size 28 Heavy Duty All Stainless Hose Clamp (Pack of 4), 1-5/16" to 2-1/4" Band, housing, and screw are all stainless steel SAE Size: 28 Low Range: 1-5/16 Inch High Range: 2-1/4 Inch Screw Size: 8 mm slotted hex head