Shop the DEWALT 0.300" Head Drive Pins - Standard, 3/4". 0.300" Head Drive Pins are standard performance flat head powder-actuated drive pins with a 0.300" diameter head and a 0.145" diameter shank, for permanently fastening a fixture to concrete, concrete over steel deck, concrete masonry walls, and structural steel. Knurled shank designs are available for thick steel base materials, and a mechanically galvanized (MG) coating option is available for treated lumber. ICC-ES ESR-2024.