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Question:

What tools should I use for tapping screws used in color tile? Is it an ordinary electric drill? Please tell me more about it, thank you!

What tools should I use for tapping screws used in color tile? Is it an ordinary electric drill? Please tell me more about it, thank you!

Answer:

The role of self tapping screws: mainly used in steel structure of color steel tile fixed, also can be used for simple construction of sheet metal fixed.
Self tapping screw is a kind of screw with drill bit. It is drilled, tapped, fixed and locked by special electric tools. Self tapping screw is mainly used for sheet metal parts is connected with the fixed connection, such as color steel plate and color steel plate, color steel plate and purlin, wall beam connection, its penetration ability is generally not more than 6mm, the maximum not more than 12mm. Self tapping screws are often exposed to the outside, and they have strong corrosion resistance. The rubber sealing ring ensures that the screw is impervious to water and has good corrosion resistance.
Self tapping screws are usually described by three parameters: screw diameter series, inch length, thread count, and screw length. Screw diameter series 10 and 12 grade two, the corresponding screw diameter were 4.87mm and 5.43mm; the number of threads per inch of length 14, 16, 24, three levels per inch thread number, the stronger the ability of self drilling.
Although many types of self tapping screws, but they have the following main features:(1) it is made of carburizing steel (99% of the total products). Can also be made of stainless steel or non-ferrous metal.(2) the product must be treated by heat treatment. Carbon steel tapping screws must be treated by carburizing, and stainless steel tapping screws must be treated by solution hardening. In order to make the tapping screw meet the standard requirements of mechanical performance and service performance.(3) the product has high surface hardness and good core toughness. "Isolating". This is a major feature of the performance requirements of self tapping screws. If the surface hardness is low, the screw does not enter the matrix; if the core is poor in toughness, one screw is broken and can not be used. So "isolating" is the self tapping screws are used to meet the requirements of performance.
Surface protection is required on the surface of the product, which is usually treated by electroplating. Some products need to be treated with phosphate (phosphating). Such as: wallboard, tapping screws are mostly phosphating.(5) cold heading process is adopted. It is recommended to use high speed cold heading machine and high-speed wire rolling machine or high-speed planetary wire rolling machine to ensure the quality of products. The self tapping screw produced in this way has good head shape and high thread quality.

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