Stainless #6 x 1/2 Inch Hex Washer Head Self Drilling Sheet Metal Tek Screws with Drill Point, 410 Stainless Steel, Self Driller, 100 Pieces (#6 x 1/2 Inch)
Brand: Chenango Supply

Self-Drilling Screws, also known as Tek screws, eliminate the need for a pre-drilled hole. The length of the drill point determines the material thickness which the screw can reliably penetrate. When selecting a self-drilling screw design, it is important to consider the material thickness and type of materials to be joined. These stainless teks are great to use in environments that are damp.

Use 1/4 Inch Hex Driver for #6 Screws
Tensile - 180,000 psi, Hardness - 40 Rockwell C
Type BSD is a tapping screw with spaced threads and a drill point which drills its own hole
#2 Drill Point; Appropriate for material thicknesses up to 0.09"