The Simpson EB-TY EB14W Premium Hidden Deck Fastener Kit with 2-1/4 in. Type 316 Stainless-Steel Screws by Simpson delivers a complete, professional-grade hidden fastening solution for wood deck boards, docks, and boardwalks. Simpson Strong-Tie redesigned the award-winning EB-TY system by integrating a Type 300 series stainless-steel reinforcing plate into each polypropylene biscuit, adding the stiffness needed to hold boards securely in place while still maintaining the flexibility to accommodate seasonal contraction and expansion. The result is a fastening system that keeps screw heads completely hidden beneath the deck surface, producing a clean, polished finish without compromising structural integrity.

Key Features

• Patented EB-GUIDE predrill guide provides precise fastener angle alignment - ensures every biscuit is installed at a consistent angle, reducing installation errors and saving time across the entire deck surface.
• Stainless-steel reinforced biscuit with increased pullover resistance - the integrated Type 300 series reinforcing plate adds stiffness so boards stay firmly locked in place, even under heavy foot traffic and load.
• Underside keel for consistent fastener positioning - keeps each biscuit properly seated in the board groove, so spacing stays uniform from the first board to the last without guesswork.
• Radius sides and chamfered edges - allow the biscuit to seat more easily into the groove, speeding up installation and reducing the effort needed to align each fastener.
• Type 316 stainless-steel trim-head, 6-lobe screws with black-painted heads - the black finish blends with the EB-TY biscuit for a concealed look, while the 6-lobe drive reduces cam-outs for a cleaner, more controlled drive every time.
• Includes Ipe plugs for first and last board installations - allows the entire deck perimeter to maintain the same hidden-fastener appearance, covering exposed screw holes at the borders for a fully finished look.
• Kit includes a 1/8 in. quick-release impact-ready drill bit and T-15 6-lobe driver bit - everything needed to begin installation is in one pack, eliminating extra trips to source compatible tooling.

Why This Product

• A truly complete hidden deck fastening system - unlike bare fastener packs, this kit includes the EB-GUIDE predrilling tool, impact-ready drill bit, driver bit, screws, and Ipe plugs, so installers have every component required from start to finish without sourcing accessories separately.
• Engineered for a clean, fastener-free deck surface - the biscuit design keeps all hardware hidden between boards, delivering the smooth, uninterrupted wood surface that visible screw-down methods simply cannot achieve.
• Built to handle seasonal wood movement - the stainless-steel reinforced biscuit holds boards firmly while still allowing natural contraction and expansion, protecting the deck structure and surface appearance over time.
• Type 316 stainless-steel hardware for demanding environments - from coastal docks to outdoor boardwalks, the corrosion resistance of Type 316 stainless steel makes this system a dependable choice for applications where moisture and exposure are ongoing concerns.

Specifications

• Manufacturer Part Number (MPN): EB14WD316R175
• Biscuit Model Number: EB14W
• Brand: Simpson Strong-Tie
• Material: Polypropylene
• Installs With: Type 316 stainless-steel screw, included
• Screw Size: #7 x 2-1/4 in.
• Screw Type: Type 316 stainless-steel trim-head, 6-lobe
• Decking Thickness: 3/4 in.
• Board Spacing Requirement: 1/4 in.
• Compatible Decking: 3/4-in. or greater kiln-dried decking with moisture content less than air dry (approx. 19%)
• Pack Quantity: 175 biscuits
• Country of Origin: United States

Approved Applications

• Decks - Deck Boards Wood

What's Included

• (175) EB-TY Premium biscuits
• (190) Type 316 stainless-steel screws
• (12) Ipê wood plugs
• (1) EB-GUIDE predrilling tool
• (1) 1/8 in. quick-release impact-ready drill bit
• (1) T-15 6-lobe driver bit

Frequently Asked Questions

What type of decking is this fastener kit compatible with?

The EB-TY EB14W Premium Hidden Deck Fastener Kit is designed for use with 3/4-in. or greater kiln-dried decking that has a moisture content less than air dry, which is approximately 19%. It is suitable for wood deck boards, including hardwoods such as Ipê, which is reflected by the inclusion of Ipê plugs for first and last board installations.

How does the EB-GUIDE tool help during installation?

The patented EB-GUIDE predrill guide provides precise fastener angle alignment, ensuring consistent biscuit installations across every deck board. This tool is included in the kit along with a 1/8 in. quick-release impact-ready drill bit and a T-15 6-lobe driver bit, giving you everything needed for accurate and efficient installation.

Why does this kit include 190 screws for 175 biscuits?

The kit includes (190) Type 316 stainless-steel screws and (175) EB-TY Premium biscuits to account for the first and last board installations. The Ipê wood plugs included in the kit are specifically used for securing those end boards, which may require a different fastening approach than the hidden biscuit method used for the field boards.

How does the stainless-steel reinforcing plate improve performance?

Simpson Strong-Tie integrated a Type 300 series stainless-steel reinforcing plate into the redesigned EB-TY biscuit. This plate adds stiffness to hold boards securely in place and increases pullover resistance, while still maintaining enough flexibility to accommodate the natural seasonal contraction and expansion of wood deck boards.