Simpson Strong-Drive SDCP TIMBER-CP Screw - 10 mm x 200 mm, Black E-Coat by Simpson Strong-Tie is a structural timber fastener engineered for cross-laminated timber (CLT), mass timber construction, and general interior wood-to-wood fastening applications. The black e-coat electrocoating and optimized hardness profile make this partially threaded screw a reliable choice wherever precise countersinking, strong pull-through resistance, and low-friction installation are required. Designed to draw structural members tightly together, this heavy-duty fastener delivers excellent load capacity while eliminating the need for predrilling in most applications - making it a practical solution for timber framing, engineered wood assembly, post frame, and factory-built or modular construction projects.

Key Features

• Black e-coat electrocoating finish - provides a construction-durable, nonmetallic, friction-reducing coating approved for ICC-ES AC257 Exposure Condition 3, offering corrosion resistance for fire-retardant treated (FRT) lumber and interior dry-service applications
• Optimized hardness profile - mitigates external hydrogen embrittlement issues and meets CSA O86:24 hydrogen embrittlement requirements, reducing the risk of brittle fracture in structural timber connections
• Flat head with underhead nibs - enables clean, flush countersinking without the need for a countersink bit, leaving a smooth, professional surface finish
• Deep T40, 6-lobe recess - provides a secure, cam-out-resistant drive connection with the included driver bit for confident installation torque transfer
• Heavy-duty shank - delivers the strength and durability demanded by structural timber and mass timber construction applications
• Shank knurl - reduces installation torque, making driving easier and more controlled, particularly in dense engineered wood products
• Type-17 point - ensures fast starts and reduced installation torque while eliminating the need for predrilling in most applications, saving time on the job site
• Length: 200 mm (7 7/8 in.) with a thread length of 3 1/8 in. - the partially threaded design pulls structural members together with superior holding power and clamping force
• Drive Type: T40 6-Lobe - compatible with the included driver bit (replacement bit: BIT40T-134-R2) for a ready-to-use, complete fastening solution

Why This Product

• Engineered specifically for mass timber and CLT - the partially threaded design and heavy-duty shank are purpose-built for cross-laminated timber, structural composite lumber, and multi-ply engineered wood fastening where reliable pull-together clamping force is essential
• Reduces installation time without sacrificing structural performance - the Type-17 point and low-friction e-coat finish work together to lower driving torque and eliminate predrilling in most applications, keeping large timber projects moving efficiently
• Compliant with current structural timber standards - the hardness profile meets CSA O86:24 hydrogen embrittlement requirements, giving designers and installers confidence in code-sensitive structural connections
• Suitable for FRT lumber and interior dry-service environments - the ICC-ES AC257 Exposure Condition 3 approval and nonmetallic e-coat finish make this screw a sound choice for fire-retardant treated lumber applications where standard coatings may fall short

Specifications

• Brand: Simpson Strong-Tie
• Product Name: Strong-Drive SDCP TIMBER-CP Screw
• Length: 7 7/8 in. (200 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