Squirrelly 4" Heavy Duty Stainless Steel T-Bolt Clamp for 4 inch Turbo Intake Intercooler Hose Tired of your intercooler piping blowing off? Upgrade to these Heavy Duty Stainless Steel T-bolt Clamps and leave those old worm clamps in the dust. Our T Bolt clamps are made from heavy duty 304 stainless steel with rounded band edges to protect soft hose materials from cuts. These high quality T-Bolt Band Clamps provide high tensile strength, durability, and are corrosion resistance. Clamp sizing: 104mm-112mm // 4.09" - 4.40". Fits 4" outside diameter.