Simpson Strong-Drive SDCP TIMBER-CP Screw - 10 mm x 160 mm, Black E-Coat by Simpson Strong-Tie is a structural wood screw engineered for cross-laminated timber (CLT), mass timber construction, and general interior framing applications. This partially threaded fastener delivers superior holding power and excellent load capacity, pulling structural members tightly together for lasting connections in engineered wood assemblies, multi-ply fastening, post frame construction, and wood-to-wood joining. The black e-coat electrocoating finish provides a friction-reducing, nonmetallic barrier that also meets corrosion resistance requirements for fire-retardant treated (FRT) lumber, making this screw a reliable choice wherever interior-grade structural performance is required.

Key Features

• Black e-coat electrocoating finish - provides a construction-durable, nonmetallic, friction-reducing coating approved for FRT lumber and corrosion resistance (approved for ICC-ES AC257 Exposure Condition 3), so the screw holds up reliably in treated wood without accelerated corrosion
• Optimized hardness profile - mitigates external hydrogen embrittlement issues and is compliant with CSA O86:24 hydrogen embrittlement requirements, reducing the risk of brittle fracture in demanding structural applications
• Flat head with underhead nibs - helps the head countersink cleanly and sit flush with the surface, delivering a professional finish without additional preparation
• Deep T40, 6-lobe recess - provides a secure, slip-resistant drive engagement, reducing cam-out and driver wear during installation (driver bit included)
• Heavy-duty shank - adds strength and durability to the fastener body so it can handle the structural loads demanded by mass timber and engineered wood assemblies
• Shank knurl - reduces driving torque so less effort is required during installation, speeding up the workflow
• Type-17 point - ensures fast starts, reduces installation torque, and eliminates the need for predrilling in most applications, saving time on the job
• 160 mm (6 1/4 in.) length with 3 1/8 in. thread length - the partial thread design pulls structural members together with superb holding power while the unthreaded shank resists withdrawal forces effectively

Why This Product

• Engineered specifically for cross-laminated timber and mass timber construction - the SDCP screw's optimized hardness profile and CSA O86:24 compliance address the unique brittleness and embrittlement risks of structural timber fastening that standard screws do not account for
• The low-friction black e-coat allows driving with less torque, which translates directly into faster installation, reduced tool wear, and lower fatigue for the installer compared to uncoated alternatives
• No predrilling required in most applications - the Type-17 point and shank knurl work together to reduce splitting and speed up installation in CLT, structural composite lumber, and engineered wood panels
• Approved for ICC-ES AC257 Exposure Condition 3 and compliant with CSA O86:24 - this means the screw meets recognized North American standards for structural and corrosion performance, supporting code-compliant installations in mass timber and factory-built/modular construction projects

Specifications

• Brand: Simpson Strong-Tie
• Product Name: Strong-Drive SDCP TIMBER-CP Screw
• Size: 10 mm x 160 mm
• Length: 6 1/4 in.
• Thread Length: 3 1/8 in.
• Shank Diameter: 0.275 in.
• Head Diameter: 0.700 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