Phillips Drive Wafer Modified Truss Head Carbon Steel Zinc Plated Self Drilling Screws

Self-drilling screws have become a go-to for many roofing, sheet metal, wood and other industrial uses because they enable you to drill without first making a pilot hole. While self-drilling screws are often used for joining sheet metal and other materials, they have a variety of other applications based on shape, size and material.

Steel is one of the most common materials for self-drilling screws for sheet metal because it offers significant strength. The downside to pure steel is it trades corrosion resistance to secure that additional strength.

Stainless steel is best used when you need corrosion resistance because it incorporates chromium and nickel alloys. Different gradings denote different alloy compositions, so be sure to match your job with the right grade.