The Simpson Strong-Drive PPHD Sheathing-to-CFS Screw - #8 x 1-15/16 in., T25 6-Lobe, Quik Guard Coating (4,000-Qty) is engineered specifically for fastening wood sheathing to cold-formed steel (CFS) framing in residential, agricultural, and commercial construction. A long #5 pilot point with an extended flute, combined with buttress threads and a dog-ear point, allows the screw to penetrate sheathing materials and light-gauge steel quickly and cleanly - without pre-drilling. The Quik Guard coating provides corrosion resistance suited to dry service and low-corrosion environments, and the screws are code-recognized for use in shearwall and diaphragm assemblies per AISI S240 and AISI S400. Collated for compatibility with Quik Drive auto-feed screw driving systems and equally suited to hand-drive applications, these fasteners deliver consistent performance across a wide range of cold-formed steel framing jobs.

Key Features

• Larger #5 pilot point with longer flute - drills through sheathing and into cold-formed steel faster and with greater precision, reducing installation time and the need for pre-drilling.
• Buttress threads and dog-ear point - provide faster, more controlled drilling through both sheathing and metal, improving pull-through resistance and minimizing material damage during installation.
• T25 6-lobe recess drive - delivers a more secure bit-to-fastener engagement, reducing cam-out and maintaining torque control for a cleaner, more consistent drive.
• Flat head profile with 0.323 in. head diameter - sits flush against sheathing surfaces for a low-profile finish that does not interfere with panel seams or surface coverings.
• Quik Guard coating - provides corrosion resistance appropriate for dry service and low-corrosion environments, including some fire-rated sheathing applications, protecting fastener integrity over time.
• Collated for Quik Drive auto-feed systems - compatible with auto-feed screw driving equipment for high-volume installation, while also available for standard hand drive use, giving crews flexibility on the job site.
• Code-recognized for shearwalls and diaphragms (AISI S240 and AISI S400) - meets prescriptive code requirements for structural panel fastening in CFS assemblies, supporting inspection approval and project compliance.

Why This Product

• Engineered specifically for CFS sheathing applications - the combination of a long #5 pilot point, buttress thread design, and dog-ear point means these screws are purpose-built for driving through sheathing into cold-formed steel, not adapted from a general-purpose fastener.
• Structural code compliance built in - PPHD screws are recognized under AISI S240 and AISI S400 for use in shearwall and diaphragm assemblies, giving builders and inspectors confidence that fastening meets prescriptive requirements without additional engineering documentation.
• Flexible installation for high-volume work - collated for use with Quik Drive auto-feed systems and compatible with hand drive applications, these screws adapt to different crew setups and job scales without requiring separate fastener selections.
• Broad project range with protective coating - the Quik Guard coating makes these screws suitable for residential, agricultural, and commercial CFS framing projects in dry service and low-corrosion environments, as well as some fire-rated sheathing installations.

Specifications

• Model Number: PPHDQ11516B-4K
• Screw Size: #8
• Length: 1-15/16 in.
• Head Type: Flat Head
• Head Diameter: 0.323 in.
• Drive Type: T25 6-Lobe
• Thread Type: Buttress Threads
• Threads Per Inch (TPI): 17
• Point Type: Pilot Point (#5)
• Coating / Finish: Quik Guard Coating
• Maximum Install Thickness: Maximum two layers of 16 ga. (0.125 in. total)
• Quantity: 4,000