The Simpson Strong-Tie EB-TY Premium Hidden Deck Fastener w/ 2-1/4-in. Type 316 Screws, 275-Pack is a hidden deck fastening system for wood decking installs where you want a cleaner finished surface without face screws showing. This is a hidden deck fastener system designed for concealed deck board installation. Model Number: EB332WD316R275. It is built for deck builders, remodelers, and serious DIY users working with 3/4-inch or thicker decking, especially wood with moisture content greater than air dry.

What makes this system matter is how it balances appearance, holding strength, and installation consistency. The EB-TY Premium biscuit uses a stainless-steel reinforcing plate to add stiffness and improve pullover resistance, so boards stay secure while still allowing for the normal seasonal movement that happens in decking. The required 3/32-inch spacing helps create a uniform deck surface, which is a big deal on premium hardwood and higher-end outdoor living projects where uneven gaps stand out right away.

The included Type 316 stainless steel trim-head screws are a practical upgrade for outdoor use, especially in environments where corrosion resistance matters more than a basic coated fastener. Black-painted screw heads help them disappear into the biscuit for a more concealed finish. Simpson also pairs the system with a patented EB-GUIDE predrill guide that helps control fastener angle alignment, which means more consistent biscuit installation and less guesswork from board to board.

From a design standpoint, the biscuit shape is doing real work here. The underside keel helps keep fastener positioning consistent, while the radius sides and chamfered edges make alignment easier during install. That saves time when you are repeating the same fastening sequence across a large deck. Instead of fighting the connector every course, you get a system meant to index more predictably and keep the process moving.

This hidden deck fastener kit is also set up like a job-ready system instead of just a bag of clips. In addition to the biscuits and screws, it includes Ipê plugs for first and last board installations, EB-GUIDE predrilling tools, a 1/8 inch quick-release impact-ready drill bit, and T-15 6-lobe driver bits. That matters because concealed deck fastening often slows down when you have to source the right setup pieces separately. Here, the hardware and guiding accessories are packaged around the installation method.

For application, this Simpson Strong-Tie hidden deck fastener system is best suited to deck construction where appearance and long-term outdoor durability both matter. It is a strong fit for premium hardwood decking, residential and commercial deck builds, and jobs where direct face fastening would take away from the finished look. If you are installing 3/4-inch decking and want a concealed fastening approach with guided alignment and corrosion-resistant screws, this system is the right kind of package.

Simpson Strong-Tie EB-TY Premium Hidden Deck Fastener w/ 2-1/4-in. Type 316 Screws, 275-Pack for cleaner deck builds

This is the kind of deck fastening system you buy when you care how the finished deck looks and do not want to give up holding power to get there.

• Who it's for: Contractors and serious DIY deck builders installing 3/4 in. or thicker wood decking, especially premium material where face screws would ruin the look.
• Why it stands out: You get stainless-steel reinforced biscuits, Type 316 screws, guided predrilling, and a full hidden-fastener setup instead of piecing the system together yourself.
• Worth knowing: This is a system product, not just a box of screws. Make sure your decking thickness and installation method match the EB-TY setup so you get the spacing and fit it was designed for.

• What type of decking is this system designed for? It is intended for 3/4 in. or greater wood decking with moisture content greater than air dry, about 19%.
• What spacing does this hidden deck fastener system create? The listed spacing requirement is 3/32 in.
• What screws are used in this package? This pack uses #7 x 2-1/4 in. Type 316 stainless-steel trim-head screws.
• Is this for exposed surface fastening? No. It is a hidden deck fastening system designed to give a concealed finished appearance.