Masonry Anchor, Tapping Screw, Driling Screw manufacturer / supplier in China, offering DIN934 DIN985 DIN6923 DIN1587 Hexagon Nuts/Hex Flange Nut /Nylon Lock Nut/ Wing Nut/Coupling Nut/Spring Nut Stainless Steel A2-70/ A4-80, Pan Head Cross Drive Countersunk Phillips Drive Head Bolt, Csk Head Zinc Plated Cross Screw with Pozi Head Used in Furniture/Machine Screw and so on.