In addition to their size and thread design, drywall screws are also available in different materials and finishes to suit different applications. For example, zinc-plated screws are resistant to corrosion and are suitable for use in damp or humid environments, such as bathrooms or kitchens. Black phosphate-coated screws are often used for interior applications where appearance is not a concern.

3. Ease of Installation These anchors can be installed with relative ease, requiring minimal tools. A pre-drilled hole is necessary, and once the anchor is positioned, it expands upon tightening, creating a robust hold. This straightforward installation process can save time and reduce labor costs, benefiting projects with tight deadlines.

1. Standard Plastic Anchors These are typically used for lightweight applications, such as hanging pictures or small shelves. They work well in drywall and other soft materials.

5. Precast Elements M20 bolts are used to connect precast concrete elements during assembly, providing quick and effective ways to join large structures without extensive welding or other complex methods.

2. Application Suitability In environments where higher loads or forces are expected, such as in industrial settings or high-rise buildings, 4% anchor bolts are often preferred. Conversely, 3% bolts may be sufficient for lighter applications, such as residential projects.