Hex Head Self Drilling Screw (Tek Screw) | Zinc Plated

High Performance Hex Washer Head Self Drilling Screws (Tek Screws). Size: M4.2 - M6.3 (Metric). Material: Hardened Carbon Steel (Grade 8). Finish: Zinc Plated / Dacromet. Feature: Drill point tip for drilling into steel without pilot holes.