Simpson Strong-Tie Enhances Line of Mass Timber Screws
Simpson Strong-Tie has upgraded its Strong-Drive SDCF Timber CF and SDCFC Timber CFC mass timber fasteners with a new point design, a new coating option and additional sizes.
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Designed for use with cross-laminated timber, mass timber construction and general interior applications, the screws feature a heavy-duty, fully threaded shank for strength and high withdrawal resistance.
“Engineered for strength, SDCF and SDCFC screws offer a reliable, high-performance option for the unique needs of mass timber construction,” said Brannan Busch, senior product manager for Simpson Strong-Tie. “With these latest enhancements and sizes, we’ve increased the screws’ versatility even further to accommodate the demands of this growing and rapidly changing industry segment.”
The SDCF Timber CF screw has a flat head with nibs for a flush finish, while the SDCFC Timber CFC has a compact cylinder head for a clean, countersunk finish. Both head styles include a deep, six-lobe recess for a secure drive.
A new addition to the screws’ design is SawTooth point technology, which enables fast starting and easy driving. The screws are also now available with a black e-coat finish, a construction-durable, nonmetallic coating offering corrosion resistance in interior, dry-service applications.
With the new sizes, the SDCF Timber CF screw now comes in three diameters: 0.315 inches (lengths from 4 3/4 to 13 3/4 inches), 0.390 inches (lengths from 4" to 17 3/4") and 0.470" (lengths from 7 7/8 to 23 5/8 inches). The SDCFC Timber CFC screw now comes in two diameters: 0.315 inches (lengths from 4 3/4 to 22 7/8 inches) and 0.390 inch (lengths from 9 1/2 to 39 3/8 inches).
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