For the attached coupling:1) Flexible PVC gasket2) Clamp: band 301 S/S 1/2" width x length; Housing 301 S/S and S/S screw3) Nominal torque: 6 - 8N.mFeatures: 1) Our factory is specialized in producing the coupling series, customers' specifications or drawings are welcomed, all the materials, finishing or other requirement of the products based on the customers' requirement. If you have similar requirements, please send the drawings or the specifications to us for reference 2) More products of our factory: the hose clamps, hose assembly, hose couplers, coupling, hose core, hose ends, elbows, tees, reducers, caps, bands, springs and ball joint service tools coupling series