Factory price, ST3.5-ST6.3, Self-drilling screws,phillips screws.It is widely used in the construction industry.

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Uses of Self-Drilling Screws: ：

1. Save time.

Self-drilling screws do not require pilot holes to cut and tighten. These screws can be drilled, tapped, and tightened in a single step. This saves time and avoids additional drilling and tightening work. Using self-drilling screws will simplify your time, resources, and stress.

2. Anti-corrosion

Rusty screws are difficult to deal with. Corrosion reduces the strength of metal structural elements, thereby reducing the thickness of the elements.

Self-drilling screws are corrosion-resistant and prevent corrosion. Self-drilling screws are made of machined hard steel or stainless steel to increase their hardness. Stainless steel does not rust, so it is corrosion-free and durable. Self-drilling screws are made of hard steel, which is durable and is the first choice of every customer.

3. Durability

Self-drilling screws are also equipped with rust-proof attachments. The corrosion-resistant surface of self-drilling screws provides long-term resistance to the deteriorating effects of weathering. This enhances the durability of the screws and has various reuses, making drilling a simple task.

Self-drilling screws are a type of screw that is commonly used in construction, woodworking, and other applications. They differ from self-tapping threaded screws because they can be drilled and tapped at the same time. Such screws have drill-like tips with spiral grooves or cut edges, and they remove material when the screws are screwed in. The drill bit will create a hole, and then the thread will be tightly attached to the material, providing a firm fixation. These screws are ideal for hard materials such as steel.