Introduce

Button Head Self tapping screws also called sheet metal screws, are very versatile. They can be used to securely fasten metals together. They can also be used to efficiently fasten metal to other materials, such as wood or plastic, by creating a much stronger bond than a regular nail.

Button Head – Rounded head most often used in socket driven screws. Becoming more common with Torx / Six-lobe drives as well. Fillister Head – Smaller diameter and higher profile than round or pan heads allows for deeper slot.

Dimension drawing

Button Head  Self Tapping Screw

The difference between self-tapping screws and self-drilling screws

• The most important difference between self-tapping and self-drilling screws is that self-tapping screws cannot go through metal without a pilot hole, which must be pre-drilled or pre-punched.
• Unlike self-tapping screws, self-drilling screws need no pilot hole to cut and fasten; they can drill, tap, and fasten in one go, which saves you the extra step of drilling, then fastening.
• etween these two, however, self-drilling screws offer two distinct advantages: time and costs saved at assembly time, and reduced error in installation, which often happens if one pre-drills holes in the wrong size.

Application

• Electronics, electrical appliances
• Electromechanical devices
• Small appliances, drones
• Instruments, high-speed rail
• Motor, furniture, medical
• Sports equipment and other industries etc.

Additional Information