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HVAC and ductwork installation
The specialized threading helps cut cleanly into tough fibers while reducing torque
Align the flange with the face of the stud
allowing for easy installation without pre-drilling into steel members ranging from 20 gauge to 1/4" thickness
Simpson Strong-Tie 0.230" x 4-3/4" Strong-Drive SDCF Timber-CF Screw - Yellow Zinc | Qty. 50 Quik Drive Drywall Screws HVAC and ductwork installationThe Simpson Strong Tie Strong Drive SDCF Timber CF Screw is engineered for strength and reliability in cross laminated timber (CLT), mass timber, and other demanding wood construction applications. Available in multiple lengths and diameters, these fully threaded structural fasteners deliver exceptional withdrawal resistance and holding power, making them the trusted choice for large scale wood assemblies. Each screw features a flat head with
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