This ultra-thin pancake head fastener is designed to fasten flush and lay flat without dimpling or showing through the panel. Available in three sizes with a Sharp Point drill point and #2 square drive with a low profile head style. Designed to fasten flush and lay flat without dimpling or showing through the panel Ultra-thin pancake head Fastens Metal to Wood #2 Square drive 250pcs/bag #10 Pancake Head Screws Non-Painted Zinc Plated Most commonly used for Clip Lock standing seam metal roofing systems