#72 Worm Drive #300 Series Stainless Steel Hose Clamp
#72 Stainless Steel Hose Clamps 72 = 4.06" to 5.00" in diameter. - Minimum quantity package is 10 pieces. Standard Series: Band Width = 0.50 in.. Worm = 0.312 in. / Band and Housing Material = 300 series stainless steel Maximum Torque = 50 in.-lbs. Discounts for large quantity orders. Standard Series: Band Width = 0.50 in.
The Band and Screw Mechanism is #300 Marine Grade Stainless Steel. Most Clamps offered in the hardware stores have stainless bands but the Screw is carbon steel and will rust.