These Constant-Torque® Marine Worm Gear Clamps use a patented Belleville spring mechanism to automatically adjust the clamp diameter as it monitors changes in environmental and operational temperatures. The 9/16" wide Aero Seal design is for smaller diameters and is torque rated for 30-70in./lbs. The 5/8" wide Heavy Duty design is for larger diameters and is torque rated 50-125 in./lbs. Both are Marine quality stainless steel, and are listed here for your convenience. Their recommended uses include Turbo Exhaust Sleeves, Heater Hoses, Coolant Hose, & Intake Systems.
(**Note: Same sizes are available in other materials, finishes and varying grades of stainless steel. For more information, contact EFC-Intl directly)