Shurups and self -tapping screws.
The most popular material in the construction and manufacture of wooden structures or just furniture are screws and screws. A wide range of application puts fasteners in the class of universal. As a rule, self -tapping screws and screws are acquired here, both for large construction work, from the roof roof and ending with interior decoration, and for domestic needs.
The structure of self -tapping screws and screws.
Self -tapping screws and screws consist of: a metal rod made of various materials on which a thread is applied, which contributes to twisting, on the one hand, self -tapping screws and screws have a turnkey or screwdriver hat, and on the other, sharpened sharp end. Self -tapping screws and screws have a slight difference in the tip of the structure. They have a large spectrum of application, but for the connection of the metal, it is worth choosing a self -tapping screw that is able to cut out a metal sheet under pressure. For wood, it is preferable to choose a screw that has wider threads of the thread that burst the tree, thereby fasten it.
The choice of screws and self -tapping screws.
Much attention should be paid to the quality of the part of the part, as well as from which material a screw or self -tapping screw is made. The condition of the hat, the type of slot under the tool (as a rule, is made under the cross screwdriver). An important factor is the applied thread that takes on the load. For a tree, it is worth choosing a rare thread, for concrete – a variable. There are many types and classifications of screws and screws that are used in various fields. For internal work, self -tapping screws and screws are made usually from carbon steel, and for roofing or external stainless steel, which will provide reliable fastening, regardless of external factors.