Simpson Strong-Drive SDCP TIMBER-CP Screw - 10 mm x 360 mm, Black E-Coat by Simpson Strong-Tie is a partially threaded structural fastener engineered for cross-laminated timber (CLT), mass timber construction, and demanding interior wood framing applications. The black e-coat electrocoating delivers a construction-durable, friction-reducing finish that makes these screws well-suited for fire-retardant treated (FRT) lumber and dry-service environments where reliable holding power and clean installation matter most. Designed to pull structural members together with superb grip and excellent load capacity, this timber screw eliminates the need for predrilling in most applications - saving time and effort on the job site.

Key Features

• Black e-coat electrocoating (ICC-ES AC257 Exposure Condition 3 approved) - provides a nonmetallic, friction-reducing, and corrosion-resistant finish that performs reliably in FRT lumber and interior structural applications without the conductivity concerns of metallic coatings
• Optimized hardness profile compliant with CSA O86:24 - mitigates external hydrogen embrittlement issues, reducing the risk of brittle fracture in demanding structural timber connections
• Flat head with underhead nibs - enables clean, flush countersinking without additional surface preparation, leaving a professional finish in exposed timber framing and engineered wood assemblies
• Deep T40, 6-lobe recess (driver bit included) - provides a secure, cam-out-resistant drive connection that improves control and reduces fastener damage during installation
• Heavy-duty shank - delivers the structural strength and durability required for mass timber, engineered wood, and post-frame applications
• Shank knurl - aids in torque reduction during driving, making it easier to seat the fastener fully without overdriving
• Type-17 point - ensures fast starts, reduces installation torque, and eliminates the need for predrilling in most applications, speeding up wood-to-wood and multi-ply fastening
• Low-friction e-coat finish - allows driving with less torque compared to uncoated fasteners, reducing installer fatigue during high-volume structural fastening tasks
• Length: 360 mm (14 in.) with a 3 1/8 in. thread length - sized for deep penetration in heavy timber and multi-ply engineered wood assemblies requiring long-reach fastening

Why This Product

• Purpose-built for mass timber and CLT construction - the SDCP TIMBER-CP screw is specifically designed for cross-laminated timber, mass timber, and structural composite lumber applications where standard fasteners fall short of load and embrittlement requirements
• Code-compliant hardness for structural reliability - the CSA O86:24-compliant optimized hardness profile directly addresses hydrogen embrittlement risk, a critical concern in high-strength structural screws used in engineered wood connections
• FRT lumber compatible with an approved corrosion resistance rating - the ICC-ES AC257 Exposure Condition 3 approval means this screw is verified for use with fire-retardant treated lumber, giving builders confidence in material compatibility for code-required fire protection assemblies
• Streamlined installation with no predrilling required in most applications - the Type-17 point and low-friction e-coat combine to reduce installation torque and eliminate setup steps, making it a practical choice for general framing, timber framing, factory-built construction, and multi-ply engineered wood fastening

Specifications

• Brand: Simpson Strong-Tie
• Length: 14 in. (360 mm)
• Shank Diameter: 0.275 in.
• Head Diameter: 0.700 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