Our constant torque clamps use a unique Belleville spring design that maintains constant pressure on the tubing by adjusting with it, eliminating "cold flow" leakage. They work great in extreme tempurature and thermal compensation applications. They feature a 5/8" wide 300 stainless steel smooth band so that soft hoses don't get damaged, a 300 stainless steel spring and worm gear housing, and a 3/8" 410 stainless steel screw for excellent corrosion resistance.