Simpson Strong-Tie SD9212R500 - #9 x 2-1/2 Inch Strong Drive SD Connector Screws - 1/4 Inch Hex Head, Galvanized Coating, Hex Bit Included, for Construction, Home Improvement (Box of 500)

• 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 0.370-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