The Simpson Strong-Drive PPHD Sheathing-to-CFS Screw, #10 x 1-3/4 in., T25 6-Lobe, Yellow Zinc is an engineered fastener purpose-built for driving through structural sheathing panels and into cold-formed steel (CFS) framing without pre-drilling. Its enlarged #5 pilot point features a longer flute that starts cleanly and penetrates CFS with precision, while fine buttressed threads bite firmly into the steel for consistent, code-compliant holding strength. The yellow-zinc coating makes these screws well-suited for dry service and low-corrosion interior environments, including select fire-rated sheathing assemblies. Compatible with Quik Drive auto-feed screw driving systems and equally effective for hand-drive applications, these fasteners are a practical choice for residential, agricultural, and commercial framing crews working with CFS construction.

Key Features

• Larger #5 pilot point with longer flute - penetrates cold-formed steel cleanly and eliminates the need for pre-drilling, saving time on every fastening cycle.
• Fine threads at 16 TPI with buttressed thread design - bites securely into CFS framing for reliable, consistent pull-through resistance in structural assemblies.
• T25 6-lobe drive recess - delivers a more secure driver engagement that reduces cam-out, keeping installation fast and accurate even under high-torque tool use.
• Flat head with 0.323 in. head diameter - sits flush against sheathing surfaces for a clean, low-profile finish that meets standard installation requirements.
• Yellow-zinc coating - provides corrosion resistance appropriate for dry service and low-corrosion interior environments, including some fire-rated sheathing applications.
• Code-prescribed for shearwalls and diaphragms per AISI S240 and AISI S400 - gives builders and inspectors a clear, documented path to code compliance in structural panel fastening.
• Compatible with Quik Drive auto-feed screw driving systems and hand-drive use - adapts to both production-speed collated driving and standard hand-drive workflows on the same jobsite.

Why This Product

• No pre-drilling required - the long #5 pilot point self-starts through sheathing and into CFS framing, cutting a step out of the installation process and keeping crews moving on large-scale framing projects.
• Built for code-critical structural work - PPHD screws are approved for use in shearwall and diaphragm assemblies as prescribed by AISI S240 and AISI S400, giving engineers and contractors verified compliance without substitution guesswork.
• Engineered specifically for sheathing-to-CFS connections - the combination of fine threads, buttressed thread geometry, and a #5 pilot point is optimized for the exact material stack encountered when attaching OSB or plywood to cold-formed steel studs and tracks.
• Dual-mode installation flexibility - collated compatibility with Quik Drive auto-feed systems and bulk availability for hand-drive use means a single screw specification covers both high-production commercial floors and smaller residential shearwall panels.

Specifications

• Model Number (MPN): PPHD134B1016-4K
• Screw Size: #10
• Length: 1-3/4 in.
• Head Type: Flat Head
• Head Diameter: 0.323 in.
• Drive Type: T25 6-Lobe
• Thread Type: Fine Threads
• TPI (Threads Per Inch): 16
• Point Type: Pilot Point (#5)
• Coating / Finish: Yellow-Zinc Coated
• Maximum Install Thickness: Two layers of 12 ga. (0.218 in. total)
• Quantity: 4,000 per package

Approved Applications

• Fastening Wood to Steel - Sheathing: Attaching structural sheathing panels (OSB, plywood, etc.) to cold-formed steel (CFS) framing members in residential, agricultural, and commercial construction
• Shearwall assemblies - code-prescribed use per AISI S240 and AISI S400
• Diaphragm construction - code-prescribed use per AISI S240 and AISI S400
• Dry service, low-corrosion environments - interior

Frequently Asked Questions

What is the maximum steel thickness these screws can fasten through?

These screws are rated for a maximum thickness of two layers of 12-gauge steel, with a combined total thickness of 0.218 inches. They are specifically designed for fastening wood sheathing materials to cold-formed steel (CFS) framing.

Are these screws approved for use in shearwall and diaphragm assemblies?

Yes. PPHD screws may be used as prescribed by the codes for shearwalls and diaphragms as described in AISI S240 and AISI S400, making them suitable for code-compliant residential, agricultural, and commercial structural applications.

Do these screws require pre-drilling before installation?

No pre-drilling is required. The enlarged #5 pilot point with a longer flute is designed to start cleanly and drive directly through sheathing materials and into cold-formed steel without the need for a pilot hole.

Can these screws be used with an auto-feed screw driving system?

Yes. These screws are compatible with Quik Drive auto-feed screw driving systems in addition to standard hand-drive applications, making them well-suited for high-volume sheathing work on large commercial or residential projects.