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.
Frequently Asked Questions
What is the main advantage of black phosphated dry wall screws?
Black phosphating provides a certain degree of lubricity, which results in a slightly better attack speed when entering steel plates.
Why choose blue and white zinc over phosphated screws?
Blue and white zinc screws offer a slightly better rust prevention effect and a lighter natural color that is less likely to fade after decorative coating.
Is there a performance difference between blue-white zinc and yellow zinc?
No, there is almost no difference in rust prevention ability between the two; the choice usually depends on user preference or local usage habits.
Which screw is best for wooden keel installation?
Single line coarse tooth dry wall screws are more suitable for wooden keels because they do not damage the wood structure and offer faster attack speeds.
What does "attack speed" mean in screw quality?
Attack speed is a quality assessment indicator that measures the speed at which a screw enters a specified thickness of steel plate.
Why are single line coarse tooth screws becoming more popular?
They serve as an efficient substitute for double line fine tooth screws, specifically optimized for better performance in wood-based construction.