410 Stainless #8 x 1/2'' Wafer Head Philips Self Drilling Sheet Metal Tek Screws, (1/2'' to 1-5/8'' Length in Listing), 100 Pieces, Modified Truss Head Self Driller (#8 x 1/2 inch)

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.