There are various types of expandable anchors, including wedge anchors, sleeve anchors, and drop-in anchors. Each type serves specific purposes and offers distinct advantages depending on the application and substrate being used. For instance, wedge anchors are ideal for heavy-duty applications, while sleeve anchors are more versatile, accommodating both solid and hollow materials.

Washer head machine screws are employed in numerous applications across various fields. In construction, they are commonly used to secure metal components, ensuring structural integrity. The increased surface area of the washer head minimizes the risk of damage to softer materials, making these screws ideal for fastening to wood or plastic surfaces without causing splitting or cracking.