The Simpson EB-TY EB14W Premium Hidden Deck Fastener Kit with 2-1/4 in. Type 305 Stainless-Steel Screws from Simpson is a complete hidden fastening solution engineered to deliver a clean, hardware-free deck surface without compromising holding strength or ease of use. A Type 300 series stainless-steel reinforcing plate is integrated directly into each polypropylene biscuit, adding the stiffness needed to hold boards firmly in place while still allowing natural seasonal expansion and contraction. Suited for wood deck boards, docks, and boardwalks alike, this kit arrives with every tool and component required to complete professional-quality hidden deck fastening right out of the box.

Key Features

• Patented EB-GUIDE predrill guide with precise fastener angle alignment - ensures consistent biscuit installations every time, reducing guesswork and rework across the entire deck surface.
• Stainless-steel reinforced biscuit with increased pullover resistance - holds boards securely under load while accommodating seasonal wood movement, so the deck stays tight and gap-free over time.
• Underside keel for consistent fastener positioning - keeps each biscuit located accurately on the joist, producing uniform board spacing from the first plank to the last.
• Radius sides and chamfered edges - allow faster alignment and quicker seating of each biscuit, cutting down installation time on large decking projects.
• Type 305 stainless-steel trim-head, 6-lobe screws with black-painted heads - blend seamlessly with the EB-TY biscuit for a fully concealed finish that maintains the deck's clean appearance.
• Compatible with 3/4 in. or greater kiln-dried decking at moisture content less than air dry (approx. 19%) - ensures a secure, stable fit that accommodates the natural drying behavior of properly conditioned lumber.
• Maintains a consistent 1/4 in. board spacing - promotes proper drainage and airflow between boards, helping to extend the life of the deck surface.
• Complete kit including EB-TY Premium biscuits, Type 305 stainless-steel screws, Ipe wood plugs, EB-GUIDE predrilling tool, 1/8 in. quick-release impact-ready drill bit, and T-15 6-lobe driver bit - provides everything needed from layout to finish in a single package, with no separate tool purchases required.
• T-15 6-lobe driver bit for reduced cam outs - maintains positive bit engagement throughout driving, protecting screw heads and speeding up installation on long deck runs.

Why This Product

• A fully integrated system, not just a fastener - the inclusion of the patented EB-GUIDE predrilling tool, an impact-ready drill bit, a driver bit, and Ipe plugs for first and last board installations means installers have a coordinated, purpose-built toolkit rather than a bag of loose hardware, resulting in cleaner results and fewer trips to the tool bin.
• Built-in flexibility where it counts - the stainless-steel reinforcing plate stiffens the biscuit for strong board retention while still allowing the natural movement that kiln-dried wood undergoes seasonally, reducing the risk of cupping, buckling, or fastener failure over the life of the deck.
• Designed for speed without sacrificing precision - radius sides, chamfered edges, an underside keel, and the EB-GUIDE guide work together to align, seat, and secure each fastener consistently, which is especially valuable on large-scale deck, dock, or boardwalk projects where installation time directly affects labor cost.
• Hardware that stays hidden and stays put - the black-painted trim heads blend with the biscuit body and remain out of sight beneath the board edges, so the finished surface shows only clean wood grain, making this system well suited for residential deck construction and commercial boardwalk applications where aesthetics matter as much as performance.

Specifications

• Model No. (Kit): EB14WDR100
• Biscuit Model No.: EB14W
• Brand: Simpson Strong-Tie
• Material: Polypropylene
• Installs With: Type 305 stainless-steel screw, included
• Screw Size: #7 x 2-1/4 in.
• Screw Type: Type 305 stainless-steel trim-head, 6-lobe with black-painted heads
• Decking Thickness: 3/4 in.
• Board Spacing Requirement: 1/4 in.
• Quantity: 100
• Country of Origin: United States

Approved Applications

• Dock and Boardwalk
• Residential and Commercial Deck Construction

What's Included

• (100) EB-TY Premium biscuits
• (115) Type 305 stainless-steel trim-head, 6-lobe screws with black-painted heads
• (6) Ipê wood plugs for first and last board installations
• (1) EB-GUIDE predrilling tool
• (1) 1/8 in. quick-release impact-ready drill bit
• (1) T-15 6-lobe driver bit for reduced cam outs

Frequently Asked Questions

What type of decking is the EB14W compatible with?

The EB14W biscuit 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%. This ensures proper fit, secure holding, and accommodates natural seasonal wood movement.

What board spacing does this hidden deck fastener system provide?

The EB-TY EB14W system is engineered to maintain a consistent 1/4-in. spacing between deck boards. The underside keel on each biscuit helps ensure accurate and uniform fastener positioning across every installation.

How does the EB-GUIDE predrilling tool improve installation?

The patented EB-GUIDE predrilling tool is included in this kit and provides precise fastener angle alignment for consistent biscuit installations. When used with the included 1/8-in. quick-release impact-ready drill bit, it simplifies the process and helps ensure repeatable, professional results across every board.

Why do the screws in this kit have black-painted heads?

The Type 305 stainless-steel trim-head, 6-lobe screws are finished with black-painted heads specifically to blend in visually with the EB-TY biscuit. This detail supports the system's hidden fastening aesthetic, keeping the finished deck surface clean and free of visible hardware.