Description

Key Features

Built for Tension Loads

This Simpson Strong-Tie HTT5 heavy tension tie is made for post-pour, wood-to-concrete connections where uplift and pull forces matter. It gives you a dedicated load path without adding a separate washer requirement.

Less Deflection

The optimized nailing pattern and four-fold seat are there for a reason. They help improve performance and reduce deflection compared to a simpler formed connector.

Retrofit Friendly

Good fit for both retrofit and new construction work. It can be installed with cast-in-place or post-installed anchor bolts, which makes layout and repair work easier in the field.

Overview

The Simpson Strong-Tie HTT5 Heavy Tension Tie is a heavy tension tie for resisting tension loads in post-pour, wood-to-concrete connections. This is a tension tie designed for anchoring wood framing to concrete where uplift resistance and tension load transfer are critical. Model Number: HTT5.

For the buyer looking at this part, the big story is straightforward: the HTT5 gives you a purpose-built connector for structural holdown and tension applications without a complicated stack of extra hardware at the seat. Simpson states that the HTT design does not require washers, which helps simplify installation and reduces one more thing to chase on a busy job. The HTT5 version uses an 11 gauge body, measures 2-1/2 inches wide by 16 inches long, and is sized for a 5/8 inch anchor.

What separates this connector from a flat strap or lighter-duty tie is the formed geometry. The HTT5 is a single-piece formed connector with a four-fold seat and no rivets. In practical terms, that means a stiffer base area where the anchor connection happens and fewer weak points in the body of the connector. Simpson also calls out an optimized nailing pattern on the HTT4 and HTT5 models, which is intended to improve performance while reducing deflection.

Installation flexibility matters with structural connectors, and that is one of the reasons this model stays relevant. The HTT5 is suited for both retrofit and new construction projects, and it can be used with cast-in-place or post-installed anchor bolts. If you are tying framing back to an existing concrete element, that flexibility is useful. If you are working from a clean foundation layout, it still fits right into a new build schedule.

On the finish side, this HTT5 variant uses a zinc galvanized G90 coating. That makes it a solid standard choice for typical protected applications where a galvanized structural connector is specified. The product family is also available in hot-dip galvanized versions, but this specific HTT5 SKU is the zinc galvanized model based on the provided product data.

Fastener compatibility is another practical point. Simpson states the HTT line is fastened with nails or Strong-Drive SD Connector screws, and the installation notes call out a minimum 2-1/2 inch long fastener when installing over wood structural panel sheathing. That matters because field conditions are not always direct wood-to-connector contact, and this gives installers a clear path when sheathing thickness changes the stack-up.

The Simpson Strong-Tie HTT5 Heavy Tension Tie is best suited for framers, builders, remodelers, and anyone handling high-wind construction details that call for a structural wood-to-concrete tension connection. If you need a 5/8 inch anchor holdown with a formed seat, solid galvanized protection, and a design intended to limit deflection, this is the kind of connector you buy once and install right.

Designed for Real Structural Load Paths

The HTT5 is built to create a direct, dependable connection between wood framing and concrete. That is exactly what you want when uplift and tension loads need a clear path into the structure.

• Designed for post-pour, wood-to-concrete connections
• Can be installed with cast-in-place or post-installed anchor bolts

Formed to Reduce Deflection

The shape of this connector is doing real work. The four-fold seat and optimized hole layout are there to help control movement and improve performance under load.

• Four-fold seat helps reduce deflection
• Optimized nailing pattern on HTT5 improves performance with less deflection

Good Fit for Retrofit or New Work

Some connectors only make sense in a perfect new-build layout. The HTT5 is more useful than that, because it works in new construction and in retrofit situations where existing concrete conditions dictate the anchor approach.

• Ideal for retrofit or new construction projects
• Zinc galvanized G90 finish for the standard HTT5 model

Key Specifications

Product Type	Heavy Tension Tie
Gauge	11 ga
Width	2-1/2 in.
Length	16 in.
Centerline (CL)	1-3/8 in.
Seat Offset (SO)	7/16 in.
Anchor Diameter	5/8 in.
Finish	Zinc Galvanized, G90
Weight	2.1 lbs

Compatibility

Anchor Compatibility

Designed for a 5/8 in. anchor. Product data also notes the related HTT5-3/4 version is intended for a 3/4 in. anchor, so this HTT5 should be matched to the 5/8 in. anchor application.

Fastener Options

The HTT line is fastened with nails or Strong-Drive SD Connector screws, depending on the approved installation for the application.

Connection Type

Built for post-pour wood-to-concrete connections in structural framing applications.

Built For

Construction Carpentry General Contracting High-Wind Construction Retrofit Work New Construction Wood-to-Concrete Connections Structural Framing

Pro Tip

If you are installing over wood structural panel sheathing, Simpson calls for a minimum 2-1/2 in. long fastener. That is an easy detail to miss, and it matters because the sheathing changes how much fastener actually bites into the framing member.

Tool Nut’s Take

Tool Nut’s Take

Simpson Strong-Tie HTT5 Heavy Tension Tie: simple part, serious job

If your plan calls for a 5/8 inch anchor holdown in a wood-to-concrete connection, this is the kind of connector you spec when you want a proven shape, less deflection, and a cleaner install.

• Who it’s for: Framers, builders, remodelers, and contractors handling structural uplift or tension details in new construction and retrofit work.
• Why it stands out: The formed seat, optimized nailing pattern, and no-washer-required design make it more practical than a basic flat connector.
• Worth knowing: This HTT5 is the standard zinc galvanized G90 version, not the hot-dip galvanized model, so make sure the finish matches the jobsite exposure requirements.

Common Questions

• What is the HTT5 designed to do? It is designed to resist tension loads in post-pour, wood-to-concrete connections.
• Is the HTT5 for retrofit only? No. Simpson states it is ideal for both retrofit and new construction projects.
• Does this model require washers? No. Simpson states the HTT design does not require washers.
• What anchor size does the HTT5 use? The provided product data identifies the HTT5 as the 5/8 in. anchor version.