When you need a fast, precise fastening solution to secure fiber-cement board or panel overlays to steel framing without pre-drilling, this Simpson Strong-Tie F08T225WDC Self-Drilling Fiber Cement Screw delivers. Engineered with a sharp self-drilling point, a wafer-style head with self-countersinking nibs, and built from heat-treated Type 410 stainless steel, it offers reliable performance in demanding applications. Ideal for wood or panel substrates over steel studs, it brings speed, strong engagement and a clean finish.

Key Features

• Wafer Head Design: Features self-countersinking nibs under the head for a clean flush finish.
• Extended Thread Length: Threading reaches within 5/16" of the head to improve embedment and pull-through resistance.
• Self-Drilling #3 Point: Penetrates steel without pre-drilling, designed for light-gauge metal framing.
• Drive System: Compatible with #2 square-drive bits for consistent tool performance and stability.
• Durable Material: Constructed from Type 410 stainless steel with protective coating for enhanced corrosion resistance.

Applications

• Attaching fiber-cement board, plywood or sheathing to cold-formed steel studs and tracks.
• Installing furring strips or other panel systems to light-gauge steel framing.
• Interior and protected exterior applications where a flush finish and durable corrosion protection are required.
• Commercial build-outs, remodels, retrofit panel work and other steel-to-panel structural connections.

Installation

1. Select the correct screw length and diameter for the application, ensuring the drill point penetrates the steel and the threads fully engage the panel substrate.
2. Use a power driver with a #2 square-drive bit. Adjust torque settings to avoid over-driving or damaging the screw head.
3. Drive the screw perpendicular to the panel surface until the wafer head sits flush with the material face.
4. Verify that the steel thickness and material compatibility are appropriate for Type 410 stainless steel. In exposed areas, confirm corrosion protection requirements are met.
5. Follow manufacturer recommendations for spacing, pattern, and panel support to maintain structural code compliance.
6. Use recommended driving speed and method for self-drilling screws to ensure efficient and accurate installation.