DIN7504 Self Drilling Tapping Screw

Self tapping screw, or quick screw, is a kind of steel quick fastener with galvanized passivation surface. Self tapping screws are mostly used to connect thin metal plates (steel plate, saw plate, etc.). Self tapping screw is a kind of screw with drill bit, which can be drilled, tapped, fixed and locked by special electric tools. Self tapping screw is mainly used for the connection and fixation of some thin plate parts. Self tapping screws are often exposed to the outside, which has strong corrosion resistance; its rubber sealing ring can ensure that the screw is impermeable and has good corrosion resistance.The product has high surface hardness. This is a major feature of self tapping screw. If the surface hardness is low, it can not be screwed in. Self tapping screws are widely used in environmental protection equipment, medical equipment, communication equipment, electric power facilities, electronic products, food machinery, petrochemical industry, ship assembly, pump val…