The Simpson EB-TY EB14W Premium Hidden Deck Fastener Kit with 2-1/4 in. Type 305 Stainless-Steel Screws (Model No. EB14WDR175) by Simpson Strong-Tie is the complete hidden deck-fastening solution engineered to deliver a clean, fastener-free deck surface without sacrificing structural performance. This 175-piece kit blends an award-winning redesigned biscuit design - featuring an integrated Type 300 series stainless-steel reinforcing plate - with a full suite of installation accessories, making it an ideal choice for 3/4 in. or greater kiln-dried wood deck boards where a polished, professional finish is the goal.

Key Features

• Patented EB-GUIDE predrill guide provides precise fastener angle alignment for consistent biscuit installations
• Stainless-steel reinforced biscuit provides strength and increased pullover resistance
• Underside keel provides consistent fastener positioning
• Radius sides and chamfered edges provide easier alignment and faster installation
• Type 305 stainless-steel trim-head, 6-lobe screws with black-painted heads provide a concealed finish and blend in with EB-TY biscuit
• Integrated Type 300 series stainless-steel reinforcing plate adds stiffness to hold boards in place securely, yet maintains flexibility during seasonal contraction and expansion
• Decking thickness: 3/4 in.
• Spacing requirement: 1/4 in.
• For use with 3/4 in. or greater kiln-dried decking with moisture content less than air dry (approx. 19%)
• Kit quantity: 175 EB-TY Premium biscuits

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.