The Simpson EB-TY EB332W Premium Hidden Deck Fastener Kit with 2-1/4 in. Type 316 Stainless-Steel Screws is a complete, professional-grade hidden deck-fastening solution engineered to deliver structural strength and clean, hardware-free deck surfaces across wood and composite decking installations. Simpson has redesigned the award-winning EB-TY system by integrating a Type 300 series stainless-steel reinforcing plate directly into the polypropylene biscuit, adding the stiffness needed to hold boards firmly in place while preserving the flexibility required to accommodate seasonal wood expansion and contraction. Paired with the included patented EB-GUIDE predrilling tool, this system provides precise fastener angle alignment for consistent, repeatable biscuit installations - making it a reliable choice for deck construction, dock builds, and boardwalk applications alike.

Key Features

• Patented EB-GUIDE predrill guide included - provides precise fastener angle alignment for consistent biscuit installations, reducing guesswork and rework on every board.
• Stainless-steel reinforced polypropylene biscuit - adds stiffness for a secure hold while maintaining flexibility for seasonal contraction and expansion, protecting board integrity over time.
• Underside keel on each biscuit - ensures consistent fastener positioning across every board, resulting in uniform spacing and a professional finished appearance.
• Radius sides and chamfered edges - allow easier alignment and faster installation, reducing installation time without sacrificing accuracy.
• Type 316 stainless-steel trim-head, 6-lobe screws with black-painted heads - blend in with the EB-TY biscuit for a fully concealed finish, while offering superior corrosion resistance suited for outdoor and marine environments.
• T-15 6-lobe driver bit included - reduces cam-outs during installation, helping maintain fastener integrity and saving time on large decking projects.
• 1/8 in. quick-release impact-ready drill bit included - compatible with impact drivers for faster predrilling, streamlining the overall installation workflow.
• Ipe wood plugs included for first and last board installations - allow the visible screw points at deck perimeters to be concealed cleanly, maintaining the hidden-fastener aesthetic from edge to edge.
• Designed for 3/4 in. or greater decking with wood moisture content greater than air dry - engineered specifically for green or freshly milled lumber, ensuring the system performs correctly as boards dry and stabilize after installation.
• Approved for deck boards, docks, and boardwalks - a versatile hidden fastening solution across multiple outdoor construction applications, both above-ground and in waterfront environments.

Why This Product

• A truly complete kit - no additional tooling required - this kit includes biscuits, screws, Ipe plugs, two EB-GUIDE predrilling tools, two drill bits, and two driver bits, so installers can begin and finish a hidden deck-fastening project without sourcing additional components separately.
• Hidden fastening with built-in structural performance - the stainless-steel reinforcing plate integrated into each biscuit delivers increased pullover resistance and board stability, meaning the clean, screw-free deck surface does not come at the cost of holding strength.
• Engineered for seasonal wood movement - the flexible polypropylene biscuit design accommodates the natural expansion and contraction of wood with moisture content greater than air dry, helping prevent warping, gapping, and board movement over the life of the deck.
• Type 316 stainless-steel hardware for demanding outdoor environments - both the reinforcing plate and the included screws use Type 316 stainless steel, providing a higher level of corrosion resistance suitable for coastal, waterfront, and high-moisture applications such as docks and boardwalks.

Specifications

• Manufacturer Part Number (MPN): EB332WD316R875
• Biscuit Model Number: EB332W
• 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: 3/32 in.
• Wood Moisture Content: Greater than air dry (approx. 19%)
• Quantity: 875
• Country of Origin: United States

Approved Applications

• Deck Construction (Hidden Fastening)
• Dock and Boardwalk

What's Included

Each EB332WD316R875 kit contains everything needed for a complete hidden deck-fastening installation:

• (875) EB-TY Premium biscuits (Model EB332W)
• (900) Type 316 stainless-steel trim-head, 6-lobe screws with black