Simpson Trim-Head Decking Screw, #7 x 2-1/4", Gray, T15 6-Lobe Drive, Type 316 Stainless Steel from Simpson is engineered for PVC and composite deck installations where a clean, low-profile finish matters and corrosion resistance cannot be compromised. The trim-style head sits flush and inconspicuous on the decking surface, while the Type 316 stainless steel construction withstands saltwater, moisture, and harsh outdoor exposure - making these fasteners a reliable choice for marine environments, seaside decks, and any high-exposure application where standard fasteners would fail prematurely. The gray painted head is designed to blend seamlessly with major PVC and composite decking brands, delivering a polished, professional result without visible hardware distracting from the finished surface.

Key Features

• Trim-head design with 0.230" head diameter - sits low and discreet on the decking surface, minimizing the visual footprint of each fastener for a cleaner finished appearance
• Type 316 stainless steel material and finish - provides superior corrosion resistance in marine, seaside, and high-moisture environments where other metals would rust or degrade
• Gray painted head - color-matched to blend with major PVC and composite decking manufacturers, reducing the visual contrast between fastener and decking board
• T15 6-lobe drive - helps prevent driver-bit cam-out during installation, resulting in easier driving, reduced installer fatigue, and longer bit life on the job
• Type-17 point - self-starting point for fast, accurate starts without pre-drilling through most of the board, helping speed up installation
• Coarse thread pattern - draws decking boards and other material tightly against the framing for a secure, stable connection
• #7 x 2-1/4" size - proportioned for solid engagement in PVC and composite decking substrates, providing reliable holding power without overdriving

Why This Product

• Built for marine and coastal decking projects - Type 316 stainless steel is specifically recommended for seaside applications where saltwater spray and humidity accelerate corrosion in lesser fasteners, helping the deck look and perform well over time
• Designed to disappear into the deck surface - the trim-head profile and gray color-matched coating work together so fasteners blend with PVC and composite boards rather than standing out as an eyesore
• Reduces driver-bit wear and installer frustration - the 6-lobe drive geometry minimizes cam-out, so installers spend less time replacing stripped bits and more time driving screws efficiently
• Color options to match your specific decking brand - available with painted heads in 13 colors matched to most major PVC and composite decking manufacturers, giving specifiers and contractors flexibility to match the exact deck color

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 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Color: Gray
• Approx. Count Per Lb: 138
• Country of Origin: Taiwan

Available Pack Options

• T07225FT70GR: 70 Pk - includes (1) T15 driver bit included (replacement bit model BIT15T-2-R2)
• T07225FTPGR: 350 Pk - includes (1) T15 driver bit included (replacement bit model BIT15T-2-R2)
• T07225FTBGR: 1750 Pk - includes (2) T15 driver bits included (replacement bit model BIT15T-2-R2)

Frequently Asked Questions

Why should I choose Type 316 stainless steel for my decking project?

Type 316 stainless steel offers superior corrosion resistance compared to standard stainless grades, making it the right choice for marine environments, seaside installations, and any high-exposure outdoor setting where moisture, salt air, or harsh conditions are present. It helps ensure the fasteners hold up over the life of the deck without rusting or deteriorating.

Are these screws compatible with PVC and composite decking?

Yes. These trim-head screws are specifically designed for use with PVC and composite deck boards. The trim-head profile sits low and clean on the surface, and the gray painted head is color-matched to blend with most major PVC and composite decking manufacturers for a finished, professional appearance.

What drive bit do I need to install these screws?

These screws use a T15 6-lobe drive. The 6-lobe drive geometry reduces cam-out, which means your driver bit stays engaged more consistently during installation - extending bit life and making the driving process smoother and more controlled.

Should I pre-drill before installing these screws near board ends?

Pre-drilling is recommended near board ends to help prevent splitting. While the Type-17 point is designed for fast starts through most of the board, working close to the end of a deck board increases the risk of splitting, so pre-drilling in those areas is a good practice.

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