3.5mm x 20mm Pozdriv Countersunk Cutter Wood Screws, 200 Pack - 

Reisser Cutter Wood screws represent the latest generation of technological excellence. They are uniquely designed to give ultimate performance and a perfect finish in all wood applications. The two patented slots (25mm and above) allow the screw to work closer to the edge without splitting, and the ribs and tucks under the head enable the screw to sit flush and tight without surface damage. The 20º needle point gives the ability to penetrate almost all timbers without a pilot hole and the sharp, wide deep thread with unique Reisser lubrication gives up to 40% less driving resistance and easy penetration.