Applications of White Hex Head Self-Drilling Screws

4. Corrosion Resistance Many hex head self-drilling screws are coated with various finishes to enhance their corrosion resistance. This is crucial for outdoor applications where exposure to the elements can lead to rust and degradation over time. Options such as galvanized or stainless steel coatings can provide extended lifespan and reliability in harsh environments.

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. Bonding Agent The type of chemical adhesive is crucial. Specifications should indicate the chemistry of the resin, curing time, and temperature range. Different projects may require different types of adhesives based on factors such as moisture exposure and load characteristics.