CNC Machine Part, Screws, Turning Parts manufacturer / supplier in China, offering 304 Stainless Steel Hexagon Socket Cap Combination Screws with Flat Spring Washer, Stainless Carbon Steel Hex Socket Cap Head Sems Screws with Washers Assemblies, M6X16 Hex Hexagon Socket Cap Combination Sems Screw with Double Washer and so on.