Self-Drilling Screws

Self-Drilling Screws (or TEKS®) are designed for use in soft steel or other metals and have Drill Bit Points that do not require holes to be pre-drilled. The points of self drilling screws are numbered from 1 through 5. The larger the number, the thicker metal (up to 0.5 in or 13mm) it can penetrate without a pilot hole