Simpson #7 x 2-1/4" Trim-Head Decking Screw in Gray with T15 6-Lobe Drive and Type 305 Stainless Steel finish is engineered for PVC and composite deck installations in marine or high-exposure environments where superior corrosion resistance is essential. The low-profile trim head virtually disappears into the decking surface for a clean, polished appearance, while the Type 305 stainless steel construction delivers long-lasting performance against moisture, salt air, and the harsh conditions common in outdoor and coastal settings. Available with a gray painted head designed to blend seamlessly with leading composite and PVC decking products, this fastener combines professional-grade durability with an aesthetically refined result.

Key Features

• Trim Head design with 0.230" head diameter - sits low and discreetly on the decking surface for a clean, finished look that minimizes visual disruption on PVC and composite boards
• Type 305 Stainless Steel material and finish - provides superior corrosion resistance in marine, coastal, and high-moisture outdoor environments where standard fasteners would fail prematurely
• Gray painted head - matched to blend with most major PVC and composite decking manufacturers, reducing the need for touch-up and creating a more uniform finished deck appearance
• T15 6-Lobe drive - helps prevent driver-bit cam-out during installation, resulting in easier, more controlled driving and extended bit life over long projects
• Type-17 point - designed for fast, accurate starts without pre-drilling through the field of the board, reducing installation time on decking projects
• Coarse thread pattern - draws decking material tightly down to the framing with each turn, creating a secure, rattle-free connection between the deck surface and the substructure
• 2-1/4" length, #7 screw size - sized appropriately for typical PVC and composite decking board thickness, ensuring adequate penetration into the framing below

Why This Product

• Built for demanding outdoor environments - Type 305 stainless steel construction resists corrosion in marine and high-exposure settings where composite or PVC decking is common, making this an appropriate fastener choice where moisture exposure is a primary concern.
• Aesthetics and function in one fastener - the gray painted trim head is engineered to blend with major composite and PVC decking brands, so the finished deck surface looks intentional rather than fastener-dotted, without sacrificing holding strength.
• Installer-friendly design that reduces fatigue and errors - the T15 6-lobe drive reduces cam-out, the Type-17 point self-starts quickly, and the coarse threads pull material tight, combining to make the installation process faster and more consistent from the first board to the last.
• Precision-matched for composite and PVC decking applications - these screws are specifically designed for use with PVC and composite deck boards, not adapted from a general-purpose fastener, meaning the head profile, thread pattern, and coating work together for this specific application.

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #7
• Length: 2-1/4 in.
• Head Type: Trim Head
• Head Diameter: 0.230 in.
• Drive Type: T15 6-Lobe
• Point Type: Type-17 Point
• Thread Type: Coarse Threads
• Material: Type 305 Stainless Steel
• Finish: Type 305 Stainless Steel
• Color: Gray
• Approximate Count Per Lb: 138
• Country of Origin: Taiwan

Available Pack Options

• S07225FTPGR: 350 Pk - includes (1) T15 driver bit included (replacement bit model BIT15T-2-R2)
• S07225FTBGR: 1750 Pk - includes (2) T15 driver bits included (replacement bit model BIT15T-2-R2)

Frequently Asked Questions

What types of decking is this screw designed for?

This trim-head screw is specifically designed for use with PVC and composite decking installations. The gray painted head is matched to blend with most major PVC and composite decking manufacturers, and the Type 305 stainless steel construction makes it well suited for marine or high-exposure outdoor environments where these deck types are commonly installed.

Why is the T15 6-lobe drive beneficial compared to a standard Phillips drive?

The T15 6-lobe drive is engineered to help prevent driver-bit cam-out during installation. This results in easier, more controlled driving and extends the usable life of your driver bit - a meaningful advantage when fastening large quantities of decking screws on a project.

Is pre-drilling required when using these screws?

The Type-17 point is designed for fast starts, which reduces the need for pre-drilling through the field of the board. However, pre-drilling is recommended near board ends to help prevent splitting of the decking material.

What is the difference between Type 305 and Type 316 stainless steel for decking screws?

Type 305 stainless steel provides superior corrosion resistance suitable for marine and high-exposure environments. For seaside applications where even greater corrosion resistance is needed - such as direct oceanfront exposure - Type 316 stainless steel is the recommended choice. The source data confirms Type 316 is available for those more demanding coastal conditions.

Note: Actual product colors may vary from colors shown on your monitor.