The Simpson EB-TY EB14W Premium Hidden Deck Fastener Kit with 2-1/4 in. Type 316 Stainless-Steel Screws by Simpson is a complete hidden fastening solution engineered to deliver professional, hardware-free deck surfaces without sacrificing structural integrity. At the core of the system is a polypropylene biscuit reinforced with a Type 300 series stainless-steel plate that adds stiffness to hold boards securely in place while maintaining the flexibility needed to accommodate seasonal contraction and expansion. Paired with the included EB-GUIDE predrilling tool, this kit simplifies hidden fastener installation for wood deck boards, docks, and boardwalks - producing consistent, clean results from the first board to the last.

Key Features

• Patented EB-GUIDE predrill guide with precise fastener angle alignment - ensures every biscuit is installed at the correct angle for consistent spacing and a uniform finished surface across the entire deck.
• Stainless-steel reinforced biscuit with increased pullover resistance - holds boards firmly in position under load, reducing the risk of boards lifting or shifting over time.
• Underside keel for consistent fastener positioning - registers the biscuit reliably against the board edge so every fastener seats the same way, speeding up installation and reducing errors.
• Radius sides and chamfered edges - allow the biscuit to drop into the slot quickly and align easily, so installation moves faster with less frustration on the job.
• Type 316 stainless-steel trim-head, 6-lobe screws with black-painted heads - blend seamlessly with the EB-TY biscuit for a concealed finish, while the 6-lobe drive reduces cam-out during driving.
• Kit includes EB-TY Premium biscuits, screws, Ipe wood plugs, EB-GUIDE predrilling tools, quick-release drill bits, and driver bits - everything needed to start and finish the job is in one package, eliminating separate accessory purchases.
• Compatible with 3/4 in. or greater kiln-dried decking - designed specifically for properly dried lumber, helping prevent fastener stress caused by excessive moisture-related movement.
• 1/4 in. board spacing requirement built into the system design - promotes proper drainage and airflow beneath deck boards, supporting long-term deck performance.

Why This Product

• A fully self-contained hidden fastening system - with biscuits, screws, Ipe plugs, predrilling tools, drill bits, and driver bits all included, this kit eliminates guesswork and keeps installation moving without hunting down compatible accessories separately.
• Engineered for both strength and seasonal movement - the stainless-steel reinforcing plate integrated into every polypropylene biscuit strikes a deliberate balance: stiff enough to resist pullover and board shift, yet flexible enough to accommodate the natural expansion and contraction of wood decking through the seasons.
• Designed to preserve the visual appeal of the finished deck - the hidden fastening method keeps all hardware out of sight, and the black-painted screw heads blend with the biscuit where exposed, making this system a strong fit for projects where surface appearance matters as much as structural performance.
• Suitable for demanding outdoor applications including decks, docks, and boardwalks - the combination of Type 316 stainless-steel screws and a reinforced biscuit makes this system appropriate for installations in environments where corrosion resistance and holding strength are both critical.

Specifications

• MPN: EB14WD316R275
• Biscuit Model No.: 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 with black-painted heads
• 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%)
• Quantity (Biscuits): 275
• Country of Origin: United States

Approved Applications

• Dock and Boardwalk

What's Included

• (275) EB-TY Premium biscuits
• (300) stainless-steel screws
• (20) Ipê wood plugs
• (2) EB-GUIDE predrilling tools
• (2) 1/8 in. quick-release impact-ready drill bits
• (2) T-15 6-lobe driver bits

Frequently Asked Questions

What type of decking is this fastener system compatible with?

The EB-TY EB14W Premium Hidden Deck Fastener 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 not recommended for use with decking that exceeds this moisture threshold.

What is the purpose of the EB-GUIDE predrilling tool included in this kit?

The patented EB-GUIDE predrill guide is designed to provide precise fastener angle alignment, ensuring consistent biscuit installations throughout your project. Two EB-GUIDE predrilling tools are included in this kit, along with two 1/8 in. quick-release impact-ready drill bits for immediate use.

Why are Type 316 stainless-steel screws used with this system?

The Type 316 stainless-steel trim-head, 6-lobe screws are selected for their corrosion resistance and durability, making them well-suited for demanding environments such as docks and boardwalks. Their black-painted heads provide a concealed finish that blends in with the EB-TY biscuit for a clean, professional appearance.

How does the stainless-steel reinforcing plate in the biscuit benefit the installation?

Simpson Strong-Tie integrated a Type 300 series stainless-steel reinforcing plate into the biscuit design to add stiffness, which holds boards in place securely and increases pullover resistance. At the same time, the design maintains flexibility to accommodate the natural seasonal contraction and expansion of decking boards.