FASTAP Exterior FINISH HEAD Self-Drilling Screws have all the same features as the standard TRIMTITE screws, only designed with a #9 diameter, and coated with our patented exterior Duracoat XT Coating. Perfect for exterior applications in hardwoods and composites, the small diameter, self-countersinking, FINISH HEAD can barely be noticed once installed. Our patented Power Point eliminates having to drill a pilot hole for easy installation, even close to the edge.