The Simpson EB-TY EB316W Premium Hidden Deck Fastener Kit with 2-1/4 in. Type 305 Stainless-Steel Screws is a complete hidden deck-fastening solution from Simpson engineered to deliver professional-grade holding strength while keeping fasteners completely out of sight. Redesigned with an integrated Type 300 series stainless-steel reinforcing plate, this award-winning system adds the stiffness needed to hold boards securely in place while still maintaining the flexibility to accommodate seasonal wood expansion and contraction. Every component required for a clean, concealed deck installation is included in this kit, making it a ready-to-use system for wood decking, composite deck boards, docks, and boardwalks alike.

Key Features

• Patented EB-GUIDE predrill guide included - provides precise fastener angle alignment for consistent biscuit installations, eliminating guesswork and helping every board come out uniform and professional.
• Stainless-steel reinforced polypropylene biscuit - adds stiffness and increased pullover resistance so boards stay firmly locked in position even under load and heavy foot traffic.
• Underside keel design - maintains consistent fastener positioning across every joist, speeding up installation and reducing the chance of misalignment.
• Radius sides and chamfered edges - allow biscuits to seat more easily into the deck board groove, resulting in faster alignment and quicker overall installation.
• 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 with no visible fastener heads on the deck surface.
• T-15 6-lobe driver bit included - reduces cam outs during driving so screws seat cleanly and installation stays efficient from start to finish.
• Compatible with 3/4-in. or greater kiln-dried decking - designed for use with wood decking, composite deck boards, docks, and boardwalk applications where a 3/16 in. board spacing is required.
• Kit includes Ipe wood plugs - for clean, finished first and last board installations where biscuit-style fastening is not possible, so the entire deck looks professionally completed edge to edge.

Why This Product

• A truly complete, ready-to-install system - unlike basic fastener packs, this kit bundles the biscuits, screws, Ipe plugs, EB-GUIDE predrilling tool, a quick-release impact-ready drill bit, and a driver bit together so you have every tool and component needed before you drive the first screw.
• Hidden fastening that does not compromise structural holding power - the integrated stainless-steel reinforcing plate stiffens the biscuit for strong pullover resistance while still allowing the flex needed to handle seasonal wood movement, giving you a deck surface that looks clean and holds up over time.
• Precision-built for consistent, repeatable results - the patented EB-GUIDE predrill guide, underside keel, radius sides, and chamfered edges all work together to make accurate placement faster on every board, reducing installation time and minimizing costly errors on large deck projects.
• Versatile application across multiple project types - suitable for wood deck boards, composite decking, docks, and boardwalks, this hidden fastener system adapts to a range of outdoor construction projects while delivering the same clean, fastener-free surface appearance.

Specifications

• MPN: EB316WDR100
• Biscuit Model No.: EB316W
• 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: 3/16 in.
• Quantity: 100 biscuits per kit
• Country of Origin: United States

Approved Applications

• Decks - Deck Boards Wood

What's Included

• (100) EB-TY Premium biscuits
• (115) Type 305 stainless-steel screws
• (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 this fastener system compatible with?

The EB-TY EB316W 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%. The system requires a 3/16 in. board spacing.

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

The patented EB-GUIDE predrill guide is included to provide precise fastener angle alignment, ensuring consistent biscuit installations every time. It takes the guesswork out of positioning and helps deliver a uniform, professional result across every deck board.

How does the stainless-steel reinforcing plate improve performance?

Simpson Strong-Tie integrated a Type 300 series stainless-steel reinforcing plate directly into the redesigned biscuit. This plate adds stiffness to hold boards securely in place while still allowing the flexibility needed to accommodate natural wood expansion and contraction that occurs with seasonal changes, increasing both strength and pullover resistance.

Are the screws included in this kit, and will they be visible after installation?

Yes, this kit includes 115 Type 305 stainless-steel trim-head, 6-lobe screws. The screws feature black-painted heads specifically designed to blend in with the EB-TY biscuit, providing a concealed finish so fasteners remain hidden in the completed deck surface.