Worm Gear Hose Clamp Band Material Stainless Steel Band Material Grade 201 Band Thickness 0.022 in Band Type Perforated Band Width 1/2 in Clamp Maximum Inside Diameter 4 1/2 in Clamp Minimum Inside Diameter 2 1/2 in Fastener Housing Material 201 Stainless Steel For Maximum Outside Diameter 4 1/2 in Grade General Purpose Maximum Operating Temperature 500 Degrees F SAE Number 64 Screw Material Stainless Steel Screw Material Finish Not Applicable Screw Material Grade 410