STEELSOFT is devoted to providing our customers with good quality and value hose clamps. Our German type hose clamps, with rolled-up band edge and non- perforated design, are based on the popular general purpose worm drive hose clamps, but engineered to prevent hose damage during using. -Features-1. All 5/16" hex head for handy socket wrench/nut driver tightening.2. Welded worm housing increases the strength of the hose clamp by 60%.3. Non-stripping for more efficient and satisfied project achievement.4. Special band design to protect your hoses. Safe sealing and last longer.5. All tubing clamps meet SAE J 1508 standards. -Specifications-Total Quantity: 12 PCSMaterial: All 304 stainless steelNeutral Salt Spray Test: 100 hoursAdjustable Clamp Diameter: 3/4 to 1-1/4"Band Width: 1/2"(12mm)Band Thickness: 0.024"Screw Clamp Hex: 5/16"Failure Torque: 60 lb-inInstallation Torque: 30-35 lb-in