Simpson Strong-Tie #9 x 1-1/2 in. 1/4-Hex Drive, Strong ...
2021-1-23u2002·u2002The Strong-Drive SD Connector screw is specifically designed to replace nails in certain Simpson Strong-Tie connectors and is the only screw approved for that application. The load-rated SD 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 ...
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