PROFESSIONAL SANITARY SCREW SUPPLIER,INCLUDING WASH BASIN SCREW SET,WATER HEATER SCREW SET,W.C SCREW SET,WATER TANK PARTS. PROFESSIONAL SANITARY SCREW SUPPLIER,INCLUDING WASH BASIN SCREW SET,WATER HEATER SCREW SET,W.C SCREW SET,WATER TANK PARTS.THE SCREW MATERIAL IS IRON OR STAINLESS STEEL,THE DIAMETER FROM 6MM TO 10MM,THE LONGTH FROM 80MM-160MM,PACKING CAN FOLLOW YOUR REQUEST.THE PLASTIC PLUG ...