Assembled Product Length: 1.5" Fastener Drive Type: HEX Finish: GALVANIZED Assembled Product Height: 0.25" Assembled Product Width: 0.25" Fastener Diameter (Imperial): #10 Fastener Length (Imperial): 1.5" . Screw for structural connectors • Simpson Strong-Tie introduces the Strong- DriveSD screw for use with our structural connectors • Designed to replace nails in certain products, the load-rated SD screw has been tested and approved for use in many popular Simpson Strong-Tieproducts • In certain applications screws are easier and more convenient to install than nails, and the single-fastener load values achieved by the SD screws exceed those of typical 10d common or 16d common nails • In addition, the galvanized coating makes the SD screw ideal for interior and most exterior conditions