Product Description
Simpson Strong-Drive SDCP TIMBER-CP Screw - 8 mm x 120 mm, Black E-Coat by Simpson Strong-Tie is a structural wood fastener engineered for cross-laminated timber (CLT), mass timber construction, and general interior framing applications. This partially threaded, flat-head screw draws structural members together with exceptional holding power, delivering reliable load capacity in engineered wood assemblies, timber framing, and multi-ply fastening. The black e-coat electrocoating finish provides a friction-reducing, nonmetallic surface that makes installation faster and easier while supporting compliance with industry standards for interior and dry-service environments.
Key Features
- Black e-coat electrocoating finish - provides a construction-durable, nonmetallic, friction-reducing coating approved for ICC-ES AC257 Exposure Condition 3, making it suitable for fire-retardant-treated (FRT) lumber and interior corrosion-resistance needs
- Optimized hardness profile compliant with CSA O86:24 - mitigates external hydrogen embrittlement issues, reducing the risk of brittle fracture in structural timber connections
- Flat head with underhead nibs - enables clean countersinking flush with the surface for a professional, finished appearance without additional finishing work
- Deep T40, 6-lobe recess - delivers a secure, cam-out-resistant drive with a driver bit included in the package, speeding up installation
- Heavy-duty shank - provides strength and durability in demanding structural and framing applications
- Shank knurl - aids in torque reduction during driving, reducing installer fatigue and wear on fastening equipment
- Type-17 point - ensures fast starts, reduces installation torque, and eliminates the need for predrilling in most applications, saving significant time on the job
- Partial thread design - pulls structural members tightly together with superb holding power for strong, durable timber connections
- 8 mm x 120 mm (4 3/4 in.) - sized for deep penetration and robust structural performance in mass timber and engineered wood assemblies
Why This Product
- Purpose-built for mass timber and CLT construction - the SDCP TIMBER-CP screw is specifically designed for cross-laminated timber, structural composite lumber, and multi-ply engineered wood fastening, making it the right choice for modern timber framing projects where performance and code compliance matter.
- Reduced installation effort without sacrificing strength - the combination of the low-friction e-coat finish, shank knurl, and Type-17 point means less torque is needed to drive each fastener, helping crews work faster while maintaining full structural integrity.
- Designed to meet critical safety standards - the hardness profile compliant with CSA O86:24 and the ICC-ES AC257 Exposure Condition 3 approval address real-world concerns about hydrogen embrittlement and coating performance in treated lumber environments.
- No predrilling required in most applications - the Type-17 point and optimized thread design eliminate a labor-intensive prep step, reducing material handling time and keeping projects on schedule in general framing and timber construction.
Specifications
- Brand: Simpson Strong-Tie
- Product Name: Strong-Drive SDCP TIMBER-CP Screw
- Diameter: 8 mm
- Length: 120 mm (4 3/4 in.)
- Shank Diameter: 0.225 in.
- Head Diameter: 0.575 in.
- Thread Length: 3 1/8 in.
- Head Type: Flat Head with Nibs
- Drive Type: T40 6-Lobe
- Point Type: Type-17 Point
- Coating: E-coat Electrocoating
- Finish: E-coat Electrocoating
- Color: Black
Available Pack Options
- SDCP8X120-R50: 50 Pk - includes T40, 6-lobe drive bit (replacement bit: BIT40T-134-R2)
- SDCP8X120: 250 Pk - includes T40, 6-lobe drive bit (replacement bit: BIT40T-134-R2)
Approved Applications
- Mass Timber / Cross-Laminated Timber
- Engineered Wood
- Engineered Wood - Multi-Ply Fastening
- Structural Composite Lumber
- Fastening Wood-to-Wood
- Fastening Floor-to-Floor
- Timber Framing
- General Framing
- Framing - Wood
- Post Frame
- Factory-Built/Modular Construction
- Wood / Residential Construction
What's Included
- Includes T40, 6-lobe drive bit (replacement bit: BIT40T-134-R2)
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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.
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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.
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