The Simpson EB-TY EB14W Premium Hidden Deck Fastener Kit with 2-1/4 in. Type 305 Stainless-Steel Screws by Simpson is an award-winning, fully redesigned hidden deck-fastening system engineered to deliver a clean, fastener-free surface on wood decks and boardwalks without compromising structural integrity. Built around a polypropylene biscuit reinforced with an integrated stainless-steel plate, this kit accommodates 3/4 in. or greater kiln-dried wood decking and arrives as a complete, ready-to-install package - biscuits, screws, plugs, guide tool, drill bit, and driver bit all included - so every step of the installation process is covered from the first board to the last.

Key Features

• Patented EB-GUIDE predrill guide provides precise fastener angle alignment for consistent biscuit installations - eliminates guesswork during predrilling so every biscuit seats at the correct angle, board after board, for a uniform finished deck.
• Stainless-steel reinforced biscuit provides strength and increased pullover resistance - the integrated Type 300 series stainless-steel reinforcing plate adds stiffness to hold boards securely in place while maintaining the flexibility needed to handle seasonal expansion and contraction.
• Underside keel provides consistent fastener positioning - keeps each biscuit correctly located in the board groove so installation stays repeatable and accurate without extra measuring.
• Radius sides and chamfered edges provide easier alignment and faster installation - the refined biscuit geometry guides the fastener into position quickly, reducing installation time across large deck surfaces.
• Type 305 stainless-steel trim-head, 6-lobe screws with black-painted heads provide a concealed finish and blend in with the EB-TY biscuit - the low-profile screw heads stay hidden within the biscuit, preserving the clean, hardware-free look of a hidden deck-fastening system.
• T-15 6-lobe driver bit for reduced cam outs is included - the matching driver bit maintains a positive grip on the screw head during installation, protecting both the fastener and the surrounding decking material from damage.
• Ipe wood plugs included for first and last board installations - provides a polished, finished edge at the perimeter boards where hidden fasteners cannot be used, keeping the entire deck surface looking consistent.
• 1/8 in. quick-release impact-ready drill bit included - compatible with standard impact drivers for faster, easier predrilling without swapping tools or sourcing additional accessories.

Why This Product

• A truly complete hidden fastening kit - unlike basic fastener packs that require separate tool and accessory purchases, this kit includes the EB-GUIDE predrilling tool, impact-ready drill bit, driver bit, Ipe plugs, and screws alongside the biscuits, so the installation is ready to start straight out of the box.
• Engineered for boards that move - the stainless-steel reinforced polypropylene biscuit is specifically designed to hold deck boards firmly in place while still allowing for the natural seasonal expansion and contraction of kiln-dried wood, helping to prevent warping, gapping, and fastener stress over time.
• A cleaner deck surface with no visible hardware - by securing boards from the groove rather than the face, the EB-TY system keeps the deck surface free of screw heads and surface fasteners, producing a professional, finished appearance suited to wood decks and dock or boardwalk applications.
• Precision built into every step - the patented EB-GUIDE tool, keel-guided biscuit positioning, and radius-chamfered edges work together as a system to reduce installation errors and speed up the fastening process, making consistent results achievable for both professional contractors and experienced DIYers.

Specifications

• Model No. (Kit): EB14WDR175
• 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.
• Decking Moisture Content: Less than air dry (approx. 19%)
• Quantity: 175
• Country of Origin: United States

Approved Applications

• Decks - Deck Boards Wood

What's Included

• (175) EB-TY Premium biscuits
• (190) Type 305 stainless-steel screws
• (12) 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 boards is this fastener kit compatible with?

This kit is designed for use with 3/4 in. or greater kiln-dried decking boards that have a moisture content less than air dry, which is approximately 19%. It is suitable for wood deck board applications and includes Ipê wood plugs specifically for first and last board installations.

How does the EB-GUIDE tool help during installation?

The patented EB-GUIDE predrilling tool is included in the kit and provides precise fastener angle alignment, ensuring consistent biscuit installations from board to board. Combined with the included 1/8 in. quick-release impact-ready drill bit, it simplifies and speeds up the predrilling process for a professional result.

Why are the screws black-painted if they are stainless steel?

The included Type 305 stainless-steel trim-head, 6-lobe screws feature black-painted heads specifically to provide a concealed finish that blends in visually with the EB-TY biscuit. This design choice reinforces the hidden fastening system's goal of maintaining a clean, uninterrupted deck surface 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 redesigned EB-TY Premium biscuit. This plate adds stiffness to securely hold boards in place while simultaneously maintaining the flexibility needed to accommodate seasonal wood contraction and expansion, improving both durability and long-term performance.