... 6, 8.8 Surface:plain(oil),black,zinc,hdg double head screws in manufacturer in Foshan 1) Factory price ... Good after-sale service5) free sample... Quick Details for double head screws in manufacturer in Foshan Type: ScrewsPlace of ... 4~100mm,1/2"~4"Material: carbon steelHead CodeCSK, pan head, truss head, hexagon head, round head, oval ... colors are available.4. OEM are warmly welcomed. Double-end screw