The 1/2 inch band and housing components are all stainless steel. The slotted 5/16 inchhex head screw is made from 400 series stainless steel. Good corrosion resistant and extra strength. Rounded edges to protect the hose. Efficient three piece construction. No Spot welds to corrode. Easily installed with screwdriver, nut driver or socket wrench. Deep slotted screws. Meets SAE Torque specifications.