Screws, Nails, Rivets manufacturer / supplier in China, offering 3/16 in X 1-1/4 in 2-3/4 in Flat Head Blue Diamond Point Concrete and Masonry Anchor Screw, 3/16 in. X 1-1/4 in Hex Washer Head Concrete Anchors Screws for Concrete Block Brick, 1/4 in. X 1-1/4 in Carbon Steel Ceramic Coating Hex-Head Blue Concrete Screw and so on.