The Simpson Strong-Tie HTT4 Heavy Tension Tie is a structural tension tie for wood-to-concrete connections in high-wind and general framing applications. This is a heavy tension tie designed for resisting tension loads in post-pour wood-to-concrete connections. Model Number: HTT4. If you are tying framing back to concrete and need a connector built specifically for uplift and pull forces, this is the piece doing that job.

What matters here is not just that it is heavy steel, but how it is formed. Simpson built the HTT4 with an optimized nailing pattern and a four-fold seat to improve performance and reduce deflection. In plain terms, that means the connector is designed to stay more stable under load instead of giving up movement where you do not want it. On structural hardware, that kind of detail is the difference between a part that merely fits and one that is engineered for the load path.

The HTT4 is made from 11-gauge steel and comes in a zinc galvanized G90 finish. Its 2-1/2 inch width and 12-3/8 inch length make it a good fit when you need a tall fastening area into the wood member while still landing onto an anchor point at the base. The formed seat and tapered side geometry help the connector carry force down into the anchor location cleanly. This is also a single-piece formed connector, so you are not dealing with a riveted assembly.

Installation flexibility is a big reason this connector gets specified. The HTT series is suitable for retrofit or new construction projects, and it can be installed with cast-in-place or post-installed anchor bolts. That gives contractors options depending on whether the foundation is already in place or the work is being planned from the ground up. Simpson also notes that when installing over wood structural panel sheathing, a 2-1/2 inch long fastener minimum should be used.

Another practical point is hardware simplification. The Simpson Strong-Tie HTT4 Heavy Tension Tie does not require washers in the standard connection described by the manufacturer. That cuts one more part out of the process and helps speed up installation planning. For crews doing repeated holdown and uplift-resistance work, little details like that add up fast.

This connector is a strong fit for framers, general contractors, remodelers, and builders working in high-wind construction or any application where wood framing needs to be positively tied back to concrete. It is especially useful in jobs where retrofit capability matters, since the design supports post-pour conditions instead of assuming everything was cast around the hardware from day one. If you are looking for a structural connector for fastening, uplift resistance, and wood-to-concrete anchoring, the HTT4 is a purpose-built option rather than a generic bracket trying to do structural work.

Why the Simpson Strong-Tie HTT4 Heavy Tension Tie earns its spot

This is a purpose-built structural connector for guys who need a clean, engineered way to tie wood framing back to concrete without messing around with improvised hardware.

• Who it's for: Framers, builders, remodelers, and contractors handling uplift resistance, retrofit anchoring, or high-wind structural connections.
• Why it stands out: The optimized nailing pattern, four-fold seat, and no-washer-required design make it more than just a bent strap. It is built to manage tension loads with less deflection.
• Worth knowing: This listing is for the HTT4 connector itself, not a hardware kit, so always match your anchor and fastener plan to the published installation requirements.

• What is the HTT4 used for? It is a heavy tension tie used for resisting tension loads in post-pour wood-to-concrete connections.
• Can it be used in retrofit work? Yes. Simpson states it is ideal for retrofit or new construction projects.
• Does the HTT4 require washers? No. The manufacturer description states that washers are not required.
• What finish does this model have? The HTT4 model shown in the specification table uses a zinc galvanized G90 finish.