Simpson Trim-Head Screw, #7 x 2", Type 305 Stainless Steel, #1 Square Drive by Simpson Strong-Tie is engineered for decking installations where a clean, low-profile finish and lasting corrosion resistance are essential. The trim-style head sits flush with the decking surface, minimizing visual intrusion while the Type 305 stainless steel construction stands up to moisture, salt air, and the demanding conditions found in marine environments, docks, and outdoor boardwalks. Whether you're fastening wood deck boards or working on a waterfront structure, these square-drive trim-head screws deliver a secure, professional result.

Key Features

• Trim-style head with 0.230" head diameter - sits flush and low-profile on the decking surface for a clean, finished appearance that keeps fasteners visually unobtrusive
• Type 305 Stainless Steel material and finish - provides superior corrosion resistance in marine, high-moisture, and high-exposure outdoor environments where standard steel fasteners would fail prematurely
• #1 Square drive - delivers secure, slip-free bit engagement during installation, reducing cam-out and keeping the work surface clean
• Type-17 point - allows for fast starts without pre-drilling in most field applications, speeding up installation and reducing labor
• Coarse threads on approximately the lower two-thirds of the shank - draw deck boards tightly down to joists for a firm, secure hold with strong pull-through performance
• 2" length, #7 screw size - sized specifically for attaching deck boards to framing, providing the right bite without over-penetrating
• Driver bit included - ready to use right out of the package, with a known replacement bit part number for long-term convenience

Why This Product

• Purpose-built for decking in demanding environments - the combination of Type 305 stainless steel and a trim-style head makes these screws a direct answer for deck, dock, and boardwalk projects where corrosion resistance and finished appearance both matter
• Faster installation with less effort - the Type-17 point starts quickly without pre-drilling while the #1 square drive resists bit slippage, so you spend more time fastening and less time correcting mistakes
• Tight, lasting board-to-joist connections - coarse threads running along the lower two-thirds of the shank pull deck boards firmly against framing, reducing gaps, bounce, and squeaking over time
• Part of a complete Simpson Strong-Tie system - also available in collated versions compatible with Simpson Strong-Tie Quik Drive auto-feed screw driving systems, giving you flexibility to choose hand-drive or power-feed methods for your application

Specifications

• Brand: Simpson Strong-Tie
• Screw Size: #7
• Length (in.): 2
• Head Type: Trim Head
• Head Diameter (in.): 0.230
• Drive Type: #1 Square
• Thread Type: Coarse Threads
• Point Type: Type-17 Point
• Material: Type 305 Stainless Steel
• Finish: Type 305 Stainless Steel
• Approx. Count per Lb.: 154
• Country of Origin: Taiwan

Available Pack Options

• S07200FB1: 1 LB - includes Driver bit included; replacement bit part number: BIT1S-2-R2
• S07200FB5: 5 LB - includes Driver bit included; replacement bit part number: BIT1S-2-R2
• S07200FBB: 4000 Pk - includes Driver bit included; replacement bit part number: BIT1S-2-R2

Approved Applications

• Decks - Deck Boards Wood
• Dock and Boardwalk

Frequently Asked Questions

Why is a trim-head design better for deck boards than a standard bugle or flat head?

The trim-style head has a smaller diameter - 0.230" - that sits low and flush with the decking surface. This minimizes the visual footprint of each fastener, resulting in a cleaner, more refined finished appearance compared to larger-headed screws that sit proud or leave a more prominent countersink mark.

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

The Type-17 point is designed for fast starts without pre-drilling in most decking applications. However, pre-drilling is recommended near board ends to help prevent splitting, particularly in hardwoods or near the edges of deck boards.

Is Type 305 stainless steel appropriate for marine or coastal deck installations?

Yes. Type 305 stainless steel offers superior corrosion resistance suited to high-exposure outdoor environments, including marine, coastal, dock, and boardwalk applications where moisture and salt air are ongoing concerns.

What replacement driver bit do I use if the included bit wears out?

The replacement bit part number for this screw's #1 square drive is BIT1S-2-R2, which is available separately when your original included bit needs to be replaced.