Expandable anchors, often known as expansion anchors, are fasteners designed to secure objects to solid materials such as concrete, brick, or stone. The fundamental principle behind their design is the ability to expand under pressure, thereby creating a secure grip within the base material. When installed, the anchor's body expands outward, locking itself firmly in place, making it suitable for heavy loads and dynamic forces.

4. Resistance to Corrosion Many metal expansion nuts are available in corrosion-resistant materials, such as stainless steel or coated metals, which are ideal for outdoor or humid environments.

Brass self-drilling screws can be used in a variety of applications, thanks to their versatile nature. Common areas of use include