Order this Simpson Strong-Tie #9 x 1-1/2 in. Hex Drive Galvanized Structural Connector Screws for delivery to your job site. Tested and approved for use in many of Simpson Strong-Tie’s best-selling connectors for both interior and most exterior applications. Ideal for use in connector applications where more control is desired or using a hammer is inconvenient. 1/4-in hex head with 0.37-in diameter integrated washer reduces cam-out and is stamped with the Simpson Strong-Tie “≠” sign and the fastener size for easy identification after installation. Shank is specifically designed to match the fastener holes in Simpson Strong-Tie connectors. Optimized heat treating for ductility and strength. Size: #9 x 1-1/2 in.. Hex driver included. Mechanically galvanized, Class 55 coating meets the requirements for use in preservative-treated and fire-retardant-treated wood per the 2012 and 215 IRC. Quantity: 100. Common project applications: remodeling, fencing, storage, cabinets, framing.