... , hex nut and EPDM, Material-metal, znic plated, with EPDM (black rubber). Size-1/2" Zinc Plated Pipe Clamp with EPDM Pipe Clamp size-1/2" Pipe ... service pipe, wire tube, construction and other industries fixed .Product thickness range 1.2 mm ,1.5 mm, 1.8 mm, 2.0 mm, 2.5 mm etc ...