The thread of the single-line coarse-tooth drywall screw is wider, and the corresponding attack speed is also faster. At the same time, since the structure of the wood material itself will not be damaged after tapping into the wood, it is more suitable for the installation of wood keels than the double-line fine-tooth drywall screw.
In foreign countries, the general construction attaches great importance to the selection of suitable fastener products. Single-line coarse-tooth drywall screws are more suitable for use in the connection of wood keels as an alternative to double-line fine-tooth drywall screws. In the domestic market, double-thread fine-tooth drywall screws have been used for a long time, and it takes a certain amount of time to change the usage habits.
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