1. Product nature
Drywall nails are a type of nails, which are divided into double thread fine thread drywall screws and single thread coarse thread drywall screws. The biggest difference between the two is that the thread of the former is double thread.
Self-tapping screw is a kind of threaded fastener that self-tapping and drilling the matching female thread in the pre-drilled hole of metal or non-metal material.
2. Shape
Drywall screw: The biggest feature in appearance is the shape of the horn head. The thread of the single-line coarse-tooth drywall screw is wider. The phosphated drywall screw is the most basic product line, while the blue and white zinc drywall screw is a supplement. The scope of application and purchase price of the two are basically the same
Self-tapping screw: On small screws, its size, thread type, head shape, tapping and drilling performance have high tensile force in engineering applications, and the characteristics of single-piece and single-sided combination are almost unlimited. The materials of self-tapping nails can be divided into two types: carbon steel and stainless steel, among which the carbon steel material is mainly 1022 medium carbon steel. Usually used in doors and windows, iron. Its head is a bearing surface formed by a part of one end which is made into an enlarged shape.
3. Application
Drywall screws: In foreign countries, the general construction pays great attention to the selection of suitable fastener products. Single-line coarse-tooth dry-wall screws are more suitable for use in the connection of wooden 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.
Self-tapping screw: used for non-metal or softer metal, it can "tap, drill, squeeze, press" the corresponding thread on the consolidated material by its own thread to make it cooperate closely with each other.
Previous
Back to Contents 
