Self Drilling Screws

What is Self Drilling Screws?

Self-drilling screws are a type of fastener that are designed to drill and tap their own hole while being driven into a material. They are commonly used in construction and industrial applications for joining materials such as metal, wood, or plastic.

Self-drilling screws have a unique design that incorporates a drill bit at the tip of the screw, which allows them to drill through the material without the need for pre-drilling a pilot hole. The screw's fluted shank then removes the material, and the thread taps the hole as it is driven in, resulting in a strong and secure connection.

Self-drilling screws come in a variety of sizes, lengths, and head styles to fit different applications. They can be used for both structural and non-structural applications and are often used in situations where drilling a pilot hole is not feasible or time-consuming, such as in outdoor construction or when working with thick metal materials.

Self-drilling screws Specification

Self-drilling screws have several specifications that determine their suitability for specific applications. Some of the key specifications include:

1. Diameter: The diameter of the screw determines its strength and load-bearing capacity. Common diameters for self-drilling screws range from #6 to 1/4 inch, with larger diameters providing greater strength.

2. Length: The length of the screw determines how deep it can penetrate the material and the thickness of the material it can join. Self-drilling screws are available in a range of lengths, typically from 1/2 inch to 8 inches.

3. Material: Self-drilling screws are available in a variety of materials, including carbon steel, stainless steel, and coated steel. The material selected should be appropriate for the application environment, as some materials may be more resistant to corrosion or better suited for outdoor use.

4. Head style: Self-drilling screws come in different head styles, including hex, Phillips, and slotted. The head style determines the tool required for driving the screw.

5. Thread type: Self-drilling screws have a specific thread type that determines how well they grip the material and provide a strong connection. The thread type may be coarse or fine, with some screws featuring a double-thread design for greater stability.

6. Point type: The point of the self-drilling screw is designed to drill through the material and start the tapping process. There are several point types, including drill point, sharp point, and blunt point, each of which is designed for specific applications.

These specifications should be carefully considered when selecting self-drilling screws for a particular application, as they can affect the performance and durability of the connection.

Head Style
•    Flanged Hex Head
•    Standard Hex Head
•    Button Head Socket Cap
•    Socket Head
•    Pan Head