1. Ease of Installation One of the most significant benefits of self-drilling screws is their simplicity. With a hex head design, they can be quickly installed and tightened using a wrench or a power tool, which can improve efficiency on the job site.

Wafer head screws are distinguished by their low-profile, flat heads, which provide a sleek finish and minimize protrusion above the surface. The designation 1% 201% 4% refers to specific mechanical and material properties that make these screws particularly effective in certain applications. The combination of these percentages generally relates to the composition of the screw materials and their tensile strength.