The Strong-Drive® SD Structural-Connector screw is specifically designed for use with Simpson Strong-Tie® connectors (frequently and generically known as joist hangers.
Strong Drive Screws preferable to nails!
Designed to replace nails in certain hangers, the load-rated SD screw has been tested and approved for use in many popular Simpson Strong-Tie® products.
It is the only screw approved for these applications.
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 (which they replace), respectively. In addition, the galvanized coating makes the strong drive screws ideal for interior and most exterior conditions.
The Strong drive screws feature an optimized shank which is specifically designed to be compatible with the fastener holes in Simpson Strong-Tie connectors. The ¼” 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.
The Strong-Drive® SD Structural-Connector screws are ideal for use in connector applications where more control is desired, or using a hammer is inconvenient. 1/4″ hex head is stamped with the Simpson Strong-Tie “≠” sign and the fastener size for easy identification after installation.
Strong Drive screws utilize optimized heat treating for ductility and strength. Mechanically-galvanized coating meets ASTM B695 Class 55, is recommended for use with certain preservative-treated woods and is compliant with the 2006 and 2009 International Residential Code® (2006 Section R319.3, 2009 Section R317.3.1).
Uncertain of which nail fasteners to use for joist hangers?
Or do you want the added reliability of an engineered threaded fastener? If so, then the Strong-Drive® SD Structural-Connector screw may very well be the part for you! Try out this brand of strong drive screws and let me know what you think, as there is nothing like firsthand experience.