10g x 25mm (18221) Undercut Self Tapping Screws Zinc 8211 Carton 4000

Our high performance screw line includes hinge screws, which are hardened countersunk self tapping undercut screws. When screwed into thin to medium gauge steel, plastic, or wood. Instead of having a full taper, the countersunk head of self-tapping undercut screws is chopped away halfway to provide a flat bottom. This enables the screw to be flush with a thin metal plate that is countersunk, typically a bracket or hinge.