Simpson Strong-Ties PDPAT-50K 1/2 in. Powder-Driven Top-Hat Pins feature a knurled shank that enhances friction within the base material, reducing the risk of pullout in demanding applications. These pins are ICC-ES listed (ESR-2138) and approved for use in Florida and Louisiana, ensuring code compliance in regulated environments. They are compatible with Simpson Strong-Tie powder-actuated tools and many other standard fastening systems used in commercial construction and metal framing.