Simpson Trim-Head Decking Screws in #7 x 1-5/8" with T15 6-Lobe Drive and Type 316 Stainless Steel finish are engineered for PVC and composite deck installations in marine, coastal, and high-moisture environments where corrosion resistance is critical. The painted Gray 01 head blends seamlessly with popular decking colors, delivering a clean, professional surface appearance while the Type 316 stainless steel construction holds up against saltwater, humidity, and harsh outdoor exposure. Whether you are fastening a boardwalk, a seaside deck, or a composite patio surface, these trim-head fasteners combine corrosion-fighting performance with a refined, low-profile finish.

Key Features

• Trim-head design with 0.230" head diameter - sits flush and discreet on the deck surface for a cleaner, more polished finish compared to standard bugle-head screws
• Type 316 Stainless Steel material and finish - provides superior corrosion resistance in marine, seaside, and high-exposure environments where lesser fasteners would rust and stain
• T15 6-Lobe drive - reduces driver-bit cam-out during installation, making driving easier, faster, and extending the life of your drive bit
• Type-17 point - sharp self-starting tip penetrates PVC and composite decking quickly without pre-drilling the field, speeding up installation
• Coarse threads - draw the decking board tightly and securely against the framing for a firm, rattle-free connection
• Gray 01 painted head - color-matched to blend with most major PVC and composite decking manufacturers, so fastener heads disappear into the deck surface
• Available in 13 painted head colors - offers flexibility to match virtually any composite or PVC decking color palette without additional surface treatment
• Predrilling recommended near board ends - helps prevent splitting when fastening close to the end of a decking board, preserving a clean edge
• T15 driver bit included - ready to use right out of the package, with a known replacement bit model for easy reordering

Why This Product

• Built specifically for coastal and marine deck applications - Type 316 stainless steel is the recognized choice for seaside environments where saltwater spray and high humidity would compromise standard or Type 304 fasteners, protecting both the screw and the deck surface from rust staining.
• Head color integration eliminates visible hardware - the Gray 01 painted trim head is designed to match major composite and PVC decking lines, so the finished deck looks clean and intentional rather than dotted with exposed metal fastener heads.
• The 6-lobe drive system reduces installation fatigue and rework - cam-out is one of the most common causes of stripped screw heads and damaged decking surfaces; the T15 6-lobe geometry keeps the bit engaged, reducing errors and speeding up large decking projects.
• A self-starting Type-17 point paired with coarse threads means fewer steps per board - fast penetration and aggressive thread pull-down let installers work efficiently on composite and PVC substrates without additional prep in the field area.

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #7
• Length: 1-5/8 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 01
• Approx. Count Per Lb: 195
• Country of Origin: Taiwan

Available Pack Options

• T07162FT70GR01: 70 Pk - includes (1) T15 driver bit included (replacement bit model BIT15T-2-R2)
• T07162FTPGR01: 350 Pk - includes (1) T15 driver bit included (replacement bit model BIT15T-2-R2)

Frequently Asked Questions

Why should I choose Type 316 stainless steel over other fastener materials for my deck project?

Type 316 stainless steel offers superior corrosion resistance compared to standard stainless grades, making it the recommended choice for marine environments, seaside applications, and any high-exposure outdoor installation where PVC or composite decking is used. It resists saltwater, moisture, and harsh atmospheric conditions that would cause lesser fasteners to corrode and stain the surrounding deck material.

Do I need to pre-drill when using these trim-head screws?

The Type-17 point is designed for fast self-starting penetration into PVC and composite decking in the field, so pre-drilling is generally not required across the deck surface. However, pre-drilling is recommended near board ends to prevent splitting the decking material when fastening close to the edge.

What drive bit do I need, and what is the replacement model if my bit wears out?

These screws use a T15 6-lobe drive. A T15 driver bit is included with your purchase. If you need a replacement bit, the model number is BIT15T-2-R2.

Are these screws compatible with composite and PVC decking products from major manufacturers?

Yes. The trim-head design and painted Gray 01 head are specifically intended to blend with most major PVC and composite decking manufacturers. The painted heads are available in 13 colors so you can select the shade that best matches your chosen decking product for a cohesive, finished appearance.

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