These 1/2" Power Seal® Marine Worm Gear Clamps are made of high quality Marine-Grade Stainless Steel. They have a "Square Knot" design that will not pull apart, and provide higher sealing pressure even at lower applied torque ranges such as installing by hand with a screwdriver. They are a general purpose clamp suited for Heater & Coolant Hoses, Air Intake & Bilge Pump lines in corrosive environments, & are available with 301/304 Band, Housing & Saddle with a 305SS Slotted Hex Head Screw, or all 316 Stainless.
(**Note: Same sizes are available in other materials, finishes and varying grades of stainless steel. For more information, contact EFC-Intl directly)