Simpson T07225FTB Trim-Head Screw, 6-Lobe Drive - #7 x 2-1/4 in. T-15 Type 316 (3000-Qty) by Simpson is engineered for fastening wood decking and some composite decking materials in marine and high-exposure environments. Constructed from Type 316 stainless steel, these trim-head screws deliver maximum corrosion protection where it matters most - including seaside, dock, and boardwalk installations where moisture and salt exposure demand uncompromising performance. The low-profile trim-style head blends discreetly into the decking surface for a clean, finished appearance on PVC and composite deck projects.

Key Features

• Fasten wood decking and some composite decking materials
• Trim-style head is less noticeable on the decking surface
• Type-17 point for fast starts
• Coarse threads on approximately 2/3 of the shank draw the decking and other material tightly to the framing
• 6-lobe drive helps prevent driver-bit cam-out, resulting in easier driving and longer bit life
• Predrilling recommended near board ends to prevent splitting
• Head diameter: 0.230 in.
• Length: 2-1/4 in.
• Type 316 stainless steel for maximum corrosion protection
• Quantity: 3,000

Specifications

• MPN: T07225FTB
• 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
• Quantity: 3,000
• Country of Origin: Taiwan

Approved Applications

• Dock and Boardwalk

What's Included

• (2) T15 driver bits included (replacement bit model BIT15T-2-R2)

Frequently Asked Questions

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

Type 316 stainless steel provides maximum corrosion protection, making these screws ideal for marine or high-exposure environments such as seaside installations, docks, and boardwalks where standard fasteners would corrode prematurely.

What does the 6-lobe drive offer compared to standard drive types?

The 6-lobe drive helps prevent driver-bit cam-out, resulting in easier driving and longer bit life - which is especially valuable on large projects where thousands of screws are being installed.

Is predrilling required when installing these trim-head screws?

Predrilling is recommended near board ends to prevent splitting. The Type-17 point supports fast starts in the field, but taking the extra step near board ends helps protect the integrity of your decking material.

Are driver bits included with this 3,000-count pack?

Yes. This pack includes (2) T15 driver bits. If replacement bits are needed, the compatible replacement bit model is BIT15T-2-R2.

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