Expanding metal wall anchors, often referred to as expansion anchors or toggle bolts, are hardware devices used to secure objects to walls or ceilings. They are constructed from metal and feature a unique design that allows them to expand within the wall when screw tension is applied. This expansion locks the anchor in place, providing a strong hold that can support significant weight.

5. Ease of Installation Designed for use with power tools, self-drilling screws can be installed quickly and with minimal effort. This efficiency is particularly advantageous in time-sensitive projects.

- A325 Type 3 Made from a weathering steel alloy, these bolts are designed for applications where enhanced resistance to corrosion is important.

4. Load Capacity The load-bearing capacity of an M20 foundation bolt can vary depending on the grade of steel used. Common grades include 4.6, 8.8, and higher grades, with 8.8 indicating a high-strength bolt capable of bearing significant tensile and shear loads.

3. Use the Correct Tools Using the right tools not only simplifies the installation process but also ensures a secure fit. Always follow the manufacturer’s guidelines.