No.6 (3.5mm) x 22mm Flanged Hexagon Self Drilling Tek Screws (DIN 7504K) - Bright Zinc Plated Steel Hexagon Flange Head Self Drilling Tek Screws feature a flange at the base of head which acts similarly to a washer, distributing the force of the fastening over a larger surface area. This makes for a more secure fixture, as well as putting less stress on the fastened area.The self-drilling tip operates in the same fashion as a drill bit, which eradicates the need for a pre-drilled pilot hole. Once the initial hole has been created, Self-Drilling Screws will then tap their own threads into the fastened material, much in the same way as a self-tapping screw. This makes Self-Drilling Screws extremely versatile as they can be used with a wide variety of materials such as wood, metal, and plastics, and therefore across a broad range of industries. These Flanged Hexagon Tek Screws are made from Bright Zinc Plated Steel which provides a level of corrosion and oxidation resistance as well as a bright finish. For larger quantities or items not listed, please email and one of our team will provide you with a quotation. No.6 (3.5mm) x 22mm Flanged Hexagon Tek Screws (DIN 7504K) - Bright Zinc Plated Steel