Product Description
Simpson Strong-Drive SDCFC TIMBER-CFC Screw - 0.315 in. x 6 1/4 in., T40, E-Coat by Simpson Strong-Tie is a heavy-duty structural fastener engineered for demanding timber construction applications. Designed for use with large members including mass timber, cross-laminated timber, glulam beams, and engineered wood assemblies, this cylinder-head screw combines a fully threaded shank with a SawTooth point to deliver exceptional withdrawal resistance and fast, clean installation. The black e-coat electrocoating finish provides a construction-durable nonmetallic corrosion barrier suited for interior dry-service environments, while the deep T40 6-lobe drive recess ensures reliable torque transfer with reduced cam-out risk.
Key Features
- Compact cylinder head design - helps countersink the screw flush for a clean exposed finish or a fully concealed appearance when driven below the surface
- Heavy-duty, fully threaded shank - maximizes withdrawal resistance along the entire fastener length, providing superior holding power in wood-to-wood connections
- SawTooth point - enables fast starts and easy driving while reducing installation torque, eliminating the need for predrilling in most applications and speeding up workflow
- Black e-coat electrocoating finish - delivers a construction-durable nonmetallic coating that resists corrosion in interior dry-service applications while enhancing aesthetics with a consistent black color
- Deep T40 6-lobe recess - provides a secure, positive drive engagement that reduces cam-out and driver slippage, improving installation accuracy and efficiency
- Optimized hardness profile - works together with the e-coat finish to help mitigate the risk of brittle fracture, supporting reliable long-term structural performance
- Compliant with CSA O86:24 hydrogen embrittlement requirements - meets Canadian structural engineering standards, giving specifiers and builders added confidence in code compliance
Why This Product
- Built specifically for large timber members - the fully threaded shank and SawTooth point make this screw a reliable choice for mass timber, glulam, and engineered wood fastening where withdrawal resistance and driving ease are both critical
- Eliminates predrilling in most applications - the SawTooth point reduces installation torque and allows direct driving into heavy timber without a pilot hole, saving time on large framing projects
- Engineered for interior structural integrity over time - the optimized hardness profile combined with the e-coat finish addresses brittle fracture risk, providing long-term performance confidence in wood-to-wood structural connections
- Versatile across a wide range of structural tasks - approved for applications from beam reinforcement and butt joist fastening to fastening Simpson Strong-Tie connectors, reducing the need for multiple fastener types on a single job site
Specifications
- Brand: Simpson Strong-Tie
- Product Name: Strong-Drive SDCFC TIMBER-CFC Screw
- Length: 6 1/4 in.
- Shank Diameter: 0.230 in.
- Head Diameter: 0.400 in.
- Thread Length: 5 7/8 in.
- Drive Type: T40 6-Lobe
- Head Type: Cylinder Head
- Point Type: SawTooth Point
- Coating: E-coat Electrocoating
- Finish: E-coat Electrocoating
- Color: Black
- Category: Fasteners - Interior Wood Screws - Hand-Drive Screw
Available Pack Options
- SDCFC8X160-R50: 50 Pk - includes T40, 6-lobe driver bit (replacement bit: BIT40T-134-R2)
- SDCFC8X160: 250 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)
Reviews
FAQs
Standard Shipping is free on most orders over $50 within the contiguous US. If the order is under $50.00, the shipping is $9.99 set fee for shipping within the contiguous US.
Most of our products will ship within 1 to 3 Business Days. Some Special order products will ship within 2 to 5 Business Days. Preorders will be shipped to you on a first come first serve basis as soon as available from the manufacturer. Items that are "Made-to-Order" (Custom order products) will be shipped when fabrication is completed, shipping and delivery times will vary and depend on manufacturing.
Products that are shipped directly from the manufacturer will have processing and fulfilment times subject to manufacturer availability.
Preorders are shipped on a first come first serve basis as soon as available from the manufacturer, the sooner you place your Preorder the sooner your order will ship.
Freight shipping Policy:
Orders/Items too large or heavy may require special handling/Shipping and may require to be sent by truck. Someone must be present to accept truck deliveries. Standard truck delivery is to a dock facility designed to receive freight. You will be notified within 24 hours of ordering to confirm delivery. Lift gates for deliveries are available for an additional fee.
We offer Financing options through Clicklease
Please email your Return request to info@FactoryDirectSupplyOnline.com
Include the order number and the reason for your return.
All returns, regardless of their categorization, must include all original parts, be in their original packaging, and in the condition in which they were received. You may not qualify to receive a refund If the returned item is used, damaged, missing any parts, or is damaged during return shipping.
Checkout our complete Return policy
You can contact us through our contact page! We will be happy to assist you.