Simpson #7 x 2-1/4" Trim-Head Decking Screw with T15 6-Lobe Drive in Type 316 Stainless Steel, Brown 05 by Simpson delivers a clean, low-profile fastening solution engineered for PVC and composite deck installations in demanding outdoor and marine environments. The Brown 05 painted head blends seamlessly with popular composite and PVC decking surfaces, while the Type 316 stainless steel construction provides exceptional resistance to saltwater corrosion, moisture, and harsh coastal conditions. Whether you're building a dock, boardwalk, or backyard deck, this trim-head fastener combines aesthetic appeal with the structural performance required for high-exposure applications.

Key Features

• Trim-style head (0.230" diameter) - sits low and discreet on the decking surface for a finished, professional appearance that minimizes the visual footprint of each fastener
• Type 316 Stainless Steel material and finish - provides superior corrosion resistance compared to standard stainless grades, making this screw the right choice for seaside, marine, and other high-moisture or high-exposure environments
• T15 6-Lobe drive - reduces driver-bit cam-out during installation, resulting in easier driving, faster work pace, and extended bit life over the course of a large decking project
• Type-17 point - cuts into material quickly for fast starts without pre-drilling in most field conditions, speeding up installation across deck boards
• Coarse threads - draw decking boards and composite or PVC materials tightly down to the framing for a secure, rattle-free connection
• Brown 05 painted head - color-matched to blend with most major PVC and composite decking manufacturers, delivering a polished look without the need for plugs or caps
• Available in 13 painted head colors (per marketing information) - allows matching to a wide range of popular decking products so installers can maintain a consistent, clean aesthetic across the entire deck surface
• Pre-drilling recommended near board ends - helps prevent splitting when fastening close to the edges of decking boards, protecting the integrity of composite and PVC materials

Why This Product

• Purpose-built for marine and high-exposure deck applications - Type 316 stainless steel is the material of choice for seaside and coastal installations where standard fasteners would corrode prematurely, protecting your deck structure over the long term.
• Designed to disappear into the deck surface - the trim head's compact 0.230" diameter and Brown 05 color-matched finish eliminate the bulky, eye-catching look of standard screw heads on PVC and composite boards, giving finished decks a cleaner appearance.
• Engineered to reduce installer fatigue and bit wear - the T15 6-Lobe drive and Type-17 point work together to minimize cam-out and reduce the effort needed to drive each fastener, which adds up significantly across a large deck or boardwalk project.
• Versatile across multiple outdoor structure types - rated for wood deck boards, composite deck boards, docks, and boardwalks, this screw covers a broad range of outdoor fastening needs without switching to a different product.

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: Brown 05
• Approx. Count per Lb.: 138
• Country of Origin: Taiwan

Available Pack Options

• T07225FT70BR05: 70 Pk - includes (1) T15 driver bit included (replacement bit model BIT15T-2-R2)
• T07225FTPBR05: 350 Pk - includes (1) T15 driver bit included (replacement bit model BIT15T-2-R2)
• T07225FTBBR05: 1750 Pk - includes (2) T15 driver bits included (replacement bit model BIT15T-2-R2)

Approved Applications

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

Frequently Asked Questions

Why should I choose Type 316 stainless steel for my decking project instead of a standard stainless steel screw?

Type 316 stainless steel offers superior corrosion resistance compared to standard grades, making it specifically recommended for marine environments, seaside applications, and any high-exposure outdoor installation where saltwater, humidity, or harsh weather is a factor. If your deck, dock, or boardwalk is near the coast or subject to constant moisture exposure, Type 316 is the appropriate material choice.

Will the Brown 05 head color match my composite or PVC decking?

The Brown 05 painted head is designed to blend with most major PVC and composite decking manufacturers' products. These trim-head screws are available in 13 painted head colors, so there is a broad selection to match your specific decking material. Note that actual product colors may vary from colors shown on your monitor.

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

The Type-17 point is designed for fast starts and generally does not require pre-drilling across most of the deck surface. However, pre-drilling is recommended near board ends to prevent splitting, particularly when fastening close to the edges of composite or PVC decking boards.

What drive bit do I need to install these screws?

These screws use a T15 6-Lobe drive. The 6-Lobe design helps prevent driver-bit cam-out during installation, which extends bit life and makes driving easier compared to traditional drive styles. Use a T15 6-Lobe bit for best results.

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