The Simpson Strong-Tie Strong-Drive SDCFC TIMBER-CFC Screw is a heavy-duty structural fastener engineered for cross-laminated timber (CLT) construction, mass timber construction, and general interior applications. At 23-5/8" in length with a robust 0.390" nominal diameter profile, this screw delivers the extra strength required for demanding applications involving large-sized structural members. The yellow zinc coating makes it well-suited for interior, dry-use environments. Whether reinforcing beams, connecting wall-to-wall assemblies, or anchoring floor-to-floor systems, the SDCFC272358 provides reliable, high-performance fastening in critical structural connections. This listing includes a 50-pack.

Key Features

• Structural Performance: Designed specifically for cross-laminated timber (CLT) and mass timber construction requiring large-sized structural members
• Yellow Zinc Coating: Provides corrosion resistance suitable for interior, dry applications
• Long 23-5/8" Length: Delivers deep penetration and superior holding power in demanding structural assemblies
• T50 6-Lobe Drive: Engineered for high-torque installation with reduced cam-out during driving
• Cylinder Head Design: Low-profile head with a 0.525" diameter for a secure, flush-fit connection
• Extended Thread Length: 22-1/4" of thread engagement maximizes withdrawal resistance in timber members
• Versatile Applications: Suitable for beam reinforcement, wall-to-wall, floor-to-floor, support beams, butt joints, and splitting reinforcement
• 50-Pack Quantity: Packaged in a 50-count pack for structural projects requiring multiple fasteners

Specifications

• Model Number: SDCFC272358
• Brand: Simpson Strong-Tie
• Series: Strong-Drive SDCFC TIMBER-CFC
• Length: 23-5/8"
• Shank Diameter: 0.29 in.
• Head Diameter: 0.525 in.
• Thread Length: 22-1/4 in.
• Drive Type: T50 6-Lobe
• Head Type: Cylinder Head
• Coating / Material: Yellow Zinc Coated
• Intended Use: Interior, dry applications only
• Pack Size: 50-Pack

Approved Applications

The SDCFC TIMBER-CFC Screw is engineered for the following structural and general interior applications:

• Cross-laminated timber (CLT) construction
• Mass timber construction
• Beam reinforcement
• Wall-to-wall connections
• Floor-to-floor connections
• Support beams
• Butt joints
• Splitting reinforcement
• General interior structural applications

Note: The yellow zinc coating is intended for interior, dry applications only. This product is not suitable for exterior, wet, or treated lumber applications.

What's Included

• 50 x Simpson Strong-Tie Strong-Drive SDCFC TIMBER-CFC Screws (Model SDCFC272358)

Frequently Asked Questions

What applications is the SDCFC272358 screw designed for?

This screw is engineered specifically for cross-laminated timber (CLT) construction, mass timber construction, and general interior applications. It is well-suited for beam reinforcement, wall-to-wall assemblies, floor-to-floor systems, support beams, butt joints, and splitting reinforcement in large-sized structural members.

What drive type is required to install this screw?

The SDCFC272358 uses a T50 6-Lobe drive, which is engineered for high-torque installation and reduced cam-out during driving.

Is this screw suitable for outdoor or high-moisture environments?

No. The screw features a yellow zinc coating that provides corrosion resistance appropriate for interior, dry-use environments only. It is not rated for exterior or high-moisture applications.

What are the key dimensions of this screw?

The screw has a nominal diameter of 0.390", an overall length of 23-5/8", and an extended thread length of 22-1/4" for maximum withdrawal resistance in timber members. The cylinder head has a low-profile design with a 0.525" diameter for a secure, flush-fit connection.