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Description
Concrete screw (Masonry screw) is a stainless or carbon steel screw for fastening wood, metal, or other materials into concrete or masonry. Concrete screws are commonly blue in color, with or without corrosion coating. (Quote from Wikipedia) This type of Concrete screw can be plunged in hammer predrilled holes or self-drilled into the wall. the self-drilling fastener has teeth for cutting its own hole in the concrete. This fastener is comprised of a steel shell (with teeth) and a tapered steel plug. The top of the shell is internally threaded so a bolt can be screwed into it. By hammer drilling the shell over the tapered steel plug, the bottom the shell is forced to expand and bear against the sides of the hole. (Quote from ConcreteNetwork.com) If you have further questions or any interesting of screws. feel free to call or email us. It's our pleasure to solve your problems. TEL: 886-7-6217249 FAX: 886-7-6220069 Email: [email protected] |