Simpson Strong-Tie #9 x 1-1/2-in Mechanically Galvanized Strong-Drive SD Exterior Wood Screws (100-Per Box)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 "no equal" 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