Pipe clamps with two screws, 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 clamps ... - M6*20.Widely is suitable for various water pipe, gas pipe line, rural service pipe, wire tube, construction and other industries fixed .Product ... ---312-31890387-92355---352-358 (1/2 inch) Zinc Plated Pipe Clamp with EPDM