#12 x 5/8 Hex Washer (Unslotted) Head Self Drilling Tek® Screws (Zinc-Plated Steel) are designed for use in metal applications. Like
self tapping screws, self drilling screws cut threads while being installed. A self drilling screw, however, has a notched point that acts as a drill point and therefore does not require a pre-drilled hole before installing. The generic name for these screws are Self Drilling, Tek® is a registered brand name of self drilling screws.