Simpson Strong-Tie Strong-Drive SDCFC TIMBER-CFC Screw (Black E-Coat)

The newly redesigned Strong-Drive SDCFC Timber-CFC screw is a robust structural fastener for demanding applications involving large members such as mass timber. A fully threaded shank provides withdrawal resistance, and the compact cylinder head creates a clean finish when left exposed, or a concealed finish when countersunk. The SawTooth® point ensures fast starts, reducing installation torque and eliminating the need for predrilling in most applications. The black e-coat finish enhances aesthetics and, along with the optimized hardness profile, helps mitigate risk of brittle fracture for reliable, long-term performance.

• Compact cylinder head helps countersink the screw for a clean finish
• Heavy-duty, fully threaded shank provides strength, with superb withdrawal resistance
• SawTooth point for fast start and easy driving
• Black e-coat finish provides a construction-durable nonmetallic coating for corrosion resistance in interior dry-service applications
• Deep 6-lobe recess for a secure drive
• Compliant with CSA O86:24 hydrogen embrittlement requirements

Specifications (all models)

• Fastener Type: Hand-Drive Screw
• Head Type: Cylinder Head
• Point Type: SawTooth Point
• Finish: E-coat Electrocoating
• Coating: E-Coat Electrocoating
• Color: Black
• Packaging Type: Box
• Application: Engineered Wood / Fastening Wood-to-Wood / Timber Framing / Beam Reinforcement / Fastening Wall-to-Wall / Fastening Support Beams / Heavy Timber / Glulam / Fastening Butt Joists / Mass Timber / Cross-Laminated Timber / Engineered Wood - Multi-Ply Fastening / Fastening Simpson Strong-Tie Connectors

Available options (see each model for exact values)

• Length (in.): 4 3/4 to 39 3/8
• Length (mm): 120 to 1000
• Shank Diameter (in.): 0.230, 0.290
• Head Diameter (in.): 0.400, 0.528
• Drive Type: T40 6-Lobe, T50 6-Lobe
• Thread Length (in.): 4 1/4 to 38 3/8