Refined Phosphating Dry Wall Nails - China Suppliers & Factory for Gypsum Board Installation
Fine Thread Products
Phosphated dry wall screws are the most basic product line, while blue and white zinc dry wall screws are a supplement, and their scope of application and purchase price are basically the same. Slightly different is that black phosphating has a certain degree of lubricity, and the attack speed (the speed of entering a specified thickness of steel plate, which is a quality assessment indicator) is slightly better; Blue and white zinc have a slightly better rust prevention effect, and the product's natural color is light, making it less likely to fade after coating decoration.
There is almost no difference in rust prevention ability between blue white zinc and yellow zinc, only due to differences in usage habits or user preferences.
Single line coarse teeth products
The thread of a single thread coarse tooth dry wall screw is wider, and the corresponding attack speed is also faster. At the same time, because it does not damage the structure of the wood material itself after entering the wood, it is more suitable for the installation of wooden keel than double thread fine tooth dry wall screws.
In foreign countries, construction generally places great emphasis on selecting suitable fastener products. Single line coarse tooth dry wall screws are a substitute for double line fine tooth dry wall screws and are more suitable for use in the connection of wooden keels. For a long time in the domestic market, double line fine tooth dry wall screws have been used entirely, and changing usage habits requires a certain amount of time.