Self-tapping screws are made from high-strength materials, originally designed to handle a variety of materials, including metal, plastic, and wood. The ability to penetrate and form threads in the base material makes hex head self-tapping screws particularly useful for applications where traditional screws may fail or require additional components for anchoring.

Tek screws, a brand name associated with self-drilling screws, are designed for quick and efficient assembly without the need for pre-drilling, which significantly reduces labor costs and time on job sites. The 13mm wafer head variant is characterized by its unique flat, wide head that provides a larger bearing surface. This design not only helps in distributing the load evenly across the material but also minimizes the risk of surface damage, making it ideal for use in visible applications.

3. Environmental Factors The choice of materials for self-drilling bolts, such as coatings or finishes, should consider the environmental conditions they will face, including exposure to moisture or corrosive substances.

Additionally, chemical anchors offer versatility in installation. They can be used in a wide range of conditions, including cracked concrete and environments with variable temperatures. Furthermore, they significantly reduce the risk of spalling concrete, which can occur with mechanical expansion anchors, thereby preserving the integrity of the substrate.