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  2. Hygroscopy - Wikipedia

    en.wikipedia.org/wiki/Hygroscopy

    Hygroscopicity is a general term used to describe a material's ability to absorb moisture from the environment. [31] There is no standard quantitative definition of hygroscopicity, so generally the qualification of hygroscopic and non-hygroscopic is determined on a case-by-case basis.

  3. Equilibrium moisture content - Wikipedia

    en.wikipedia.org/wiki/Equilibrium_moisture_content

    Equilibrium moisture content of wood versus humidity and temperature, according to the Hailwood-Horrobin equation. The equilibrium moisture content (EMC) of a hygroscopic material surrounded at least partially by air is the moisture content at which the material is neither gaining nor losing moisture.

  4. Screw - Wikipedia

    en.wikipedia.org/wiki/Screw

    Some screws are driven into intact wood; larger screws are usually driven into a hole narrower than the screw thread, and cut the thread in the wood. Early wood screws were made by hand, with a series of files, chisels, and other cutting tools, and these can be spotted easily by noting the irregular spacing and shape of the threads, as well as ...

  5. Confirmat screw - Wikipedia

    en.wikipedia.org/wiki/Confirmat_screw

    Ordinary wood screws do not hold well in particleboard, which is much weaker than wood. They tend to tear out. [6] Confirmat screws have about twice the shank diameter of a woodscrew. Drywall screws, while half the price of confirmat screws, do not hold as well in particleboard-like materials, and cannot be removed and re-inserted.

  6. List of screw and bolt types - Wikipedia

    en.wikipedia.org/wiki/List_of_screw_and_bolt_types

    Similar to a wood screw but with two pointed ends and no head, used for making hidden joints between two pieces of wood. A hanger bolt has wood screw threads on one end and machine threads on the other. A hanger bolt is used when it is necessary to fasten a metal part to a wood surface. drive screw hammer drive screw

  7. Furniture screw - Wikipedia

    en.wikipedia.org/wiki/Furniture_screw

    Wood screws are a common type of screw in furniture. A furniture screw can refer to any type of screw (and sometimes nut) used on furniture. Different types of screws have different uses in furniture. [1] According to a 1986 article in New York Times, screws on old furniture can be difficult to remove due to rust. [2]

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