Simpson #7 x 2-1/4" Trim-Head Decking Screw in Gray 01 with T15 6-Lobe Drive and Type 305 Stainless Steel finish is engineered for PVC and composite deck installations in marine, coastal, and high-exposure outdoor environments. The low-profile trim head blends into the decking surface for a clean, polished appearance, while the Type 305 stainless steel construction delivers superior corrosion resistance where standard fasteners would fail. Whether you are building a backyard deck, a dock, or a boardwalk, these screws are designed to hold firmly and look great doing it.

Key Features

• Trim-head design with 0.230" head diameter - sits flush and low-profile against the decking surface, resulting in a cleaner finished appearance with minimal visual intrusion on composite or PVC boards
• Type 305 stainless steel material and finish - provides superior corrosion resistance in marine, coastal, and high-moisture environments where standard screws corrode prematurely
• T15 6-Lobe drive - the six-lobe engagement reduces cam-out during driving, giving the installer better torque transfer, fewer stripped drives, and longer bit life
• Type-17 point - self-starting tip bores into composite and wood decking quickly for fast starts without pre-drilling in most field conditions
• Coarse threads - draw the decking board tightly down to the framing for a snug, secure connection that minimizes movement and squeaking over time
• Gray 01 painted head - color-matched coating is designed to blend with major PVC and composite decking product lines, keeping the fastener nearly invisible from above
• Available in 13 head colors - the broader Simpson Trim-Head line includes multiple color options matched to leading decking manufacturers, making it straightforward to find the right visual match for your project

Why This Product

• Built for demanding outdoor environments - Type 305 stainless steel resists corrosion in marine and high-exposure settings where composite and PVC decking is commonly installed, making these screws a durable long-term fastening solution for docks, boardwalks, and exposed decks
• A cleaner deck surface without extra work - the trim head is specifically shaped to sit low and blend in, so you spend less time filling or covering fastener heads and more time enjoying the finished result
• Engineered to resist driver frustration - the T15 6-Lobe drive reduces the cam-out that causes stripped drives and wasted fasteners, helping professionals and DIYers alike work faster and more confidently
• Color-matched for a professional finish - the Gray 01 painted head is formulated to coordinate with common PVC and composite decking colors, so the fastener virtually disappears into the board surface once installed

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
• Thread Type: Coarse Threads
• Point Type: Type-17 Point
• Material: Type 305 Stainless Steel
• Finish: Type 305 Stainless Steel
• Color: Gray 01
• Approx. Count Per Lb: 138
• Country of Origin: Taiwan

Available Pack Options

• S07225FTPGR01: 350 Pk - includes (1) T15 driver bit included (replacement bit model BIT15T-2-R2)
• S07225FTBGR01: 1750 Pk - includes (2) T15 driver bits included (replacement bit model BIT15T-2-R2)

Approved Applications

• Dock and Boardwalk
• Decks - Deck Boards Composite
• Decks - Deck Boards Wood

Frequently Asked Questions

Why should I use Type 305 stainless steel screws for my deck project?

Type 305 stainless steel offers superior corrosion resistance compared to standard coated fasteners, making these screws well-suited for marine environments, coastal installations, and other high-exposure outdoor applications where moisture, salt air, or harsh conditions would cause ordinary screws to corrode and stain the decking surface over time.

What decking materials are these screws compatible with?

These trim-head screws are designed for use with PVC and composite deck boards, as well as wood deck boards. They are also suited for dock and boardwalk construction where durable, corrosion-resistant fastening is required.

What driver bit do I need for the T15 6-Lobe drive?

These screws use a T15 6-Lobe drive, which requires a matching T15 6-Lobe (Torx-style) driver bit. This drive type is specifically designed to reduce cam-out during installation, so using the correct bit helps protect both the screw head and your driver tip for faster, cleaner driving.

Do I need to pre-drill before installing these screws?

The Type-17 self-starting point is designed for fast penetration into composite and wood decking without pre-drilling in most situations. However, pre-drilling is recommended when driving near board ends to help prevent splitting, particularly in wood decking applications.

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