The Simpson HTT5HDG Heavy Tension Tie is a single-piece formed connector engineered by Simpson to deliver high-strength, post-pour, concrete-to-steel connections in wood-frame construction. Built from 11-gauge steel with a four-ply formed seat and finished in hot-dip galvanization, this heavy tension tie resists medium tension loads without requiring rivets or anchor bolt washers - making it a reliable, streamlined choice for both new construction and retrofit applications where a 5/8-in. anchor bolt is specified.

Key Features

• Single-piece, rivet-free construction - eliminates extra hardware and reduces installation complexity on the job site
• Four-ply formed steel seat - delivers increased tension capacity where the connection bears the most load, providing a stronger, more dependable anchor point
• No anchor bolt washers required - simplifies the installation process and reduces the number of components the installer needs to manage
• Compatible with cast-in-place or post-installed anchor bolts - gives contractors flexibility to use this connector on new pours as well as retrofit projects without purchasing a different product
• Hot-dip galvanized finish - provides extra corrosion resistance beyond standard coatings, making this tension tie well suited for exterior environments and treated-wood applications where moisture and chemical exposure are concerns
• Suitable for retrofit or new construction - broad application compatibility means one connector model serves multiple project types, reducing inventory requirements on multi-phase jobs

Why This Product

• A no-washer, no-rivet design that saves time - because the HTT5HDG is engineered without rivets and does not require anchor bolt washers, installers handle fewer parts and complete the concrete-to-steel connection faster with less risk of missing a component
• Hot-dip galvanization built for demanding environments - the HDG finish offers a higher level of corrosion protection than standard coatings, making this connector a practical choice for exterior installations and projects involving treated lumber where premature corrosion is a real concern
• Four-ply formed seat for reliable tension performance - the multi-ply steel construction is specifically designed to increase tension capacity, giving structural professionals confidence that the connection will perform under medium tension loads in post-pour applications
• Versatile anchor bolt compatibility for retrofit and new builds - acceptance of both cast-in-place and post-installed 5/8-in. anchor bolts means this single connector works across a wide range of concrete-to-wood framing scenarios, reducing the need to source multiple product types for different project phases

Specifications

• Model Number: HTT5HDG
• Length: 16 in.
• Width: 2-1/2 in.
• Gauge: 11
• Anchor Rod Diameter: 5/8 in.
• Coating: Hot-Dip Galvanized
• Finish: Hot-Dip Galvanized
• Country of Origin: United States

Approved Applications

• Post-pour, concrete-to-steel wood-frame connections
• Exterior applications requiring enhanced corrosion resistance
• Treated-wood applications where standard galvanization is insufficient
• Retrofit projects utilizing post-installed anchor bolts
• New construction projects utilizing cast-in-place anchor bolts

Downloads and Resources

• Fasteners required. View Specifications

Frequently Asked Questions

Does the HTT5HDG require anchor bolt washers during installation?

No. The HTT5HDG is specifically designed without rivets and does not require anchor bolt washers, simplifying the installation process.

What type of anchor bolt is compatible with the HTT5HDG?

The HTT5HDG is designed for use with a 5/8-in. anchor bolt. It is compatible with both cast-in-place and post-installed anchor bolts, making it suitable for new construction as well as retrofit applications.

Why is the hot-dip galvanized finish important for this tension tie?

Hot-dip galvanization (HDG) provides extra corrosion resistance compared to standard coatings, making the HTT5HDG well suited for exterior applications and use with treated wood, where exposure to moisture and chemicals can accelerate corrosion.

How many fasteners are required to install the HTT5HDG, and what types are approved?

Installation requires (26) fasteners in addition to the 5/8-in. anchor bolt. Approved fastener types include 0.148 x 1-1/2-in. nails, 0.148 x 3-in. nails, 0.162 x 2-1/2-in. nails, or #10 x 1-1/2-in. Strong-Drive SD Connector screws. Corrosion-resistant fasteners must be used.

Note: Product dimensions and/or screw or bolt holes may differ from picture. Please see item description for specifications.