Masonry Anchor, Tapping Screw, Driling Screw manufacturer / supplier in China, offering White Black Plastics Hex Domed Cap Nuts/Dome Nut Cap Nut, Hexagon Dome Cap Nut/Nylon Plastic Domed Nuts Acorn Nuts, Wheel Lug Nut Cap Nuts/ Hex Cap Nuts Dome Cap Nuts and so on.