10 Pack Breeze 200-40H Aero-Seal Industrial / Aircraft Hose Clamp Effective Diameter Range: 2-1/16" - 3" (52mm - 76mm) 410 Stainless Steel Slotted Hex Screw 9/16" (14.2mm) Stainless Steel Band Original patented worm-gear clamp Heavy-duty four piece Quadra-Lock construction used for aircraft and heavy-duty industrial applications