Strong-Drive® SD CONNECTOR Screw


Simpson Strong-Tie offers the Strong-Drive® SD Connector screw for use with our connectors. Designed to replace nails in certain products, the load-rated Strong-Drive® SD Connector screw has been tested and approved for use in many popular Simpson Strong-Tie® products. In certain applications screws are easier and more convenient to install than nails, and the single-fastener load values achieved by the SD9 and SD10 exceed those of typical 10d common or 16d common nails, respectively. In addition, the galvanized coating makes the Strong-Drive® SD Connector screw ideal for interior and most exterior conditions.

The Strong-Drive® SD Connector screw features an optimized shank, specifically designed for capability with the fastener holes in Simpson Strong-Tie connectors. The hex head virtually eliminates cam-out and helps avoid stripping of the head during installation. The sharp point of the screw enables fast starts, and the patented serrated threads reduce torque for improved drivability.



  • Specifically designed to replace nails in certain Simpson Strong-Tie®
    connectors, and is the only screw approved for that application. The #9 and #10 SD screws replace 10d and 16d nails respectively.
  • Tested and approved for use in many of our 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″ hex head reduces cam-out for easier installation 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
  • Patented serrated threads and sharp point make driving easier
  • Optimized heat treating for ductility and strength
  • The single-fastener load capacity of the SD9 exceeds the capacity of a 10d common nail, while the single-fastener load capacity of the SD10 exceeds that of the 16d common nail
  • Mechanically galvanized coating meets ASTM B695 Class 55, is recommended for use with certain preservative-treated woods and recognized as an alternate to hot-dip galvanized in ESR-3046. It is compliant with the 2006, 2009, and 2012 International Residential Code® (2006 Section R319.3, 2009 and 2012 Section R317.3.1)
  • Connectors installed with the SD screw code listed under ICC-ES ESR-3096

Material: Heat-treated carbon steel.

Finish: Mechanically galvanized (ASTM Class 55)