The Grainger Approved Worm Gear Hose Clamp is made of stainless steel for corrosion resistance. It has a worm gear screw for tightening and is designed for heavy duty applications. This hose clamp has a band width of 1/2 inch, a band thickness of 0.050 inch, and a clamping range of 5/8 inch to 1-1/4 inch. The working pressure is up to 300 psi at 170 degrees Fahrenheit. Overall, this is a durable stainless steel worm gear hose clamp suitable for heavy duty use.