Lined clamps are designed for use with silicone rubber and other soft hose applications. The liner protects the hose surface and prevents it from extruding or shearing through the band notches as the clamp is tightened. Screw, housing and band are 300 SS. Screw: 5/16" hex head. Band: 9/16" wide. Installation torque: 35 in.-lbs. (4 Nm).