Understanding Metal Expansion Nuts Functionality and Applications

The Role of Washers

The white wafer head of these self-drilling screws is characterized by a broad, flat surface that provides a wide bearing area. This design helps distribute the load more evenly, reducing the risk of damage to the material being fastened. The head is typically finished in a white coating that not only enhances aesthetic appeal but also offers a degree of corrosion resistance, which is particularly beneficial in outdoor applications or areas exposed to moisture.

2. Expansion Screws These screws are designed for concrete or masonry walls. When installed, they expand and grip the surrounding material as the screw is driven into it, creating a robust anchor point.

The selection of the right fastener is paramount when it comes to structural integrity. A325 fasteners offer several advantages