The Simpson Strong-Drive PPHD Sheathing-to-CFS Screw is an engineered fastener built specifically for attaching sheathing materials to cold-formed steel (CFS) framing in residential, agricultural, and commercial construction. This #10 x 1-3/4 in. collated screw uses a larger #5 pilot point with a longer flute to self-drill cleanly through sheathing and into CFS without any pre-drilling, making it well-suited for fast, high-volume work. Its flat head and fine-thread design pull sheathing tight to the steel substrate, while a T25 6-lobe recess reduces cam-out and keeps the bit seated during extended installation runs. The Quik Guard coating provides protection for dry service and low-corrosion environments, including select fire-rated sheathing assemblies. Collated for use with compatible Simpson auto-feed screw driving systems, these screws streamline workflow on framing and sheathing applications where speed and structural reliability are both priorities.

Key Features

• Larger #5 pilot point with longer flute - self-drills through sheathing and into cold-formed steel without pre-drilling, reducing labor steps and speeding up installation on CFS framing projects.
• Fine threads at 16 TPI - pull sheathing tightly and securely against the steel substrate, producing a firm, low-profile connection at each fastening point.
• T25 6-lobe recess - provides more secure bit engagement compared to standard drive types, minimizing cam-out during high-volume auto-feed or hand-drive use.
• Flat head design (0.323 in. head diameter) - sits flush with the sheathing surface for a clean finish that does not interfere with overlying materials or finishes.
• Quik Guard coating - suited for dry service, low-corrosion environments and some fire-rated sheathing assemblies, broadening the range of job site conditions where these screws can be confidently used.
• Compatible with Quik Drive PRO300SG2, PRO250G2, and PRO200SG2 auto-feed systems - lets crews drive screws continuously without stopping to reload, increasing productivity on large sheathing installations.
• Two T25 6-lobe driver bits included (replacement model QRTX25-1.5) - gets the crew working immediately, with a clear path to replacing bits when they wear.
• Code-recognized for shearwalls and diaphragms per AISI S240 and AISI S400 - supports use in qualifying structural applications without requiring additional engineering workarounds.

Why This Product

• Built for CFS framing from the fastener up - the longer #5 pilot point and fine-thread geometry are specifically engineered for sheathing-to-cold-formed-steel connections, so the screw performs the way CFS assemblies demand rather than being adapted from a general-purpose fastener.
• Collated format cuts installation time significantly - designed to work with three compatible Simpson Quik Drive auto-feed systems, these screws allow continuous driving that keeps crews moving across large wall and roof sheathing areas without constant interruptions to reload.
• Structural confidence backed by recognized codes - PPHD screws are recognized for use in shearwall and diaphragm applications under AISI S240 and AISI S400, giving builders and engineers a dependable fastener solution for code-compliant structural assemblies in residential and commercial projects.
• Versatile enough for demanding assemblies - Quik Guard coating and compatibility with select fire-rated sheathing mean these screws can be specified across a wider range of project types, from standard framing to applications where fire-resistance ratings are part of the design requirement.

Specifications

• Model Number: PPHDQ134S1016
• Screw Size: #10
• Length: 1-3/4 in. (1.75 in.)
• Head Type: Flat Head
• Head Diameter: 0.323 in.
• Drive Type: T25 6-Lobe
• Thread Type: Fine Threads
• TPI (Threads Per Inch): 16