Product Description
Simpson Strong-Drive SDCFC TIMBER-CFC Screw - 0.315 in. x 13 in. T40, E-Coat by Simpson Strong-Tie is a heavy-duty structural fastener engineered for demanding timber construction and mass timber applications. Featuring a fully threaded shank for superior withdrawal resistance, a compact cylinder head for a clean or countersunk finish, and the proprietary SawTooth point that enables fast starts without predrilling in most applications, this screw is purpose-built for large structural members including glulam beams, cross-laminated timber, and multi-ply engineered wood assemblies. The black e-coat electrocoating finish delivers a construction-durable, nonmetallic surface that resists corrosion in interior dry-service environments while providing an aesthetically refined appearance when the screw head is left exposed.
Key Features
- Compact cylinder head - helps countersink the screw flush with the surface for a clean finished look when exposed or fully concealed when recessed, ideal for visible timber connections
- Heavy-duty, fully threaded shank - threads run the full 12 5/8 in. thread length, maximizing withdrawal resistance and structural holding power through large timber members
- SawTooth point - enables fast starts and reduces installation torque, eliminating the need for predrilling in most heavy timber applications and speeding up the job
- Black e-coat electrocoating finish - provides a construction-durable nonmetallic coating for corrosion resistance in interior dry-service applications, while the optimized hardness profile helps mitigate the risk of brittle fracture for long-term reliable performance
- Deep T40 6-lobe drive recess - delivers a secure, slip-resistant drive connection that reduces cam-out under high installation torque into dense structural lumber
- CSA O86:24 hydrogen embrittlement compliance - meets Canadian structural engineering standards, supporting cross-border project specifications and documentation requirements
- 0.315 in. nominal diameter with 0.230 in. shank diameter - engineered for strength in heavy timber framing without requiring pilot holes in most applications
Why This Product
- Designed specifically for mass timber, glulam, and engineered wood fastening - the fully threaded 13 in. shank penetrates deep into large structural members where conventional screws fall short in both reach and holding strength
- The SawTooth point eliminates predrilling in most applications, reducing labor time and tool requirements on heavy timber framing and beam reinforcement projects
- The black e-coat electrocoating provides both a corrosion-resistant and visually refined finish, making it an appropriate choice for exposed interior timber connections where aesthetics matter alongside structural performance
- Compliant with CSA O86:24 hydrogen embrittlement requirements, this screw is suitable for projects requiring documented compliance with current structural wood design standards
Specifications
- Brand: Simpson Strong-Tie
- Product Name: Strong-Drive SDCFC TIMBER-CFC Screw
- Length: 13 in.
- Shank Diameter: 0.230 in.
- Head Diameter: 0.400 in.
- Thread Length: 12 5/8 in.
- Drive Type: T40 6-Lobe
- Head Type: Cylinder Head
- Point Type: SawTooth Point
- Coating: E-coat Electrocoating
- Finish: E-coat Electrocoating
- Color: Black
Available Pack Options
- SDCFC8X330-R30: 30 Pk - includes T40, 6-lobe driver bit (replacement bit: BIT40T-134-R2)
- SDCFC8X330: 200 Pk - includes T40, 6-lobe driver bit (replacement bit: BIT40T-134-R2)
Approved Applications
- 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
What's Included
- T40, 6-lobe driver bit (replacement bit: BIT40T-134-R2)
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FAQs
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