These 5/8" Hi-Torque Extended Range Marine Worm Gear Clamps are a special series with expanded working diameter ranges and superior torque drive, sealing pressure & resistance to vibration. Additional perforations in their bands enable each clamp to perform in applications normally requiring multiple sizes of clamps. The 4 sizes offered in these clamps cover working diameters from 1-1/4" to 9-1/8". They are available in 100% 316 Stainless, or 301/304SS Band, Housing & Saddle with a 305SS Screw.