HEAVY DUTY POWR-GEAR 6X - Premium Powr-Gear 6X clamps are designed for high vibration and stubborn leakage applications such as industrial machinery, heavy truck, farm and off-road equipment engines. Only five sizes cover clamping diameters from 1 1/4 to 10 1/8, minimizing inventory investment without compromising application coverage. Extra band notches allow greater opened and closed working diameters and extra wide 5/8 band and a wide profile housing provides maximum engagement of screw threads to band. Engineered to deliver exceptionally high rates of band tension to handle the toughest sealing jobs. Material Specifications: Screw: 5/16 Hex Head; 410 Stainless - Housing: 300 Stainless - Band: 5/8, 300 Stainless - Installation Torque: 75-90 in-lbs (8.5-10 Nm) Size: No. 412 Fits Hose with Inner Diameter of: Min (in)= 2, Max (in)=4-1/8, Min (mm)= 51, Max (mm)= 105.