Worm Drive Hose Clamps often known as Jubilee Clips are designed to seal hoses onto fittings. They offer greater hose protection than perforated alternatives due to their solid band. When the screw is tightened it meshes with the slots in the band and tightens the clamp. It features a spotwelded house and C7 hexagonal screw. 9mm band width has a recommended maximum tightening torque of 3.0Nm and a 12 millimeter band has a recommended maximum tightening torque of 5.0Nm.