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.

5. Improved Alignment Accurate alignment of formwork is critical for achieving the desired dimensions and flat surfaces in concrete structures. Wedge bolts help to maintain this alignment, providing a straight and stable framework for the concrete. This is essential for ensuring the quality and aesthetics of the finished concrete surfaces.