The Simpson Titen HD 3/4 in. x 7 in. Type 316 Stainless Steel Heavy-Duty Screw Anchor is a premium concrete and masonry screw anchor engineered for installations where corrosion resistance cannot be compromised. Built from Type 316 stainless steel - the optimal material choice for saltwater, marine, and chemically aggressive environments - this anchor pairs superior corrosion protection with an innovative heat-treated carbon-steel cutting thread that undercuts the base material for efficient, reliable load transfer. Whether you are securing structural connections in coastal construction or anchoring into concrete exposed to corrosive solutions, this heavy-duty screw anchor delivers fast installation and lasting performance under both static and seismic loading conditions.

Key Features

• Qualified for static and seismic loading conditions - provides engineers and contractors confidence that the anchor meets performance requirements for both everyday structural loads and seismic events.
• Undercutting thread design - efficiently transfers load directly into the base material, maximizing holding strength in concrete and masonry without relying on expansion force alone.
• No special drill bit required - installs using standard-sized ANSI tolerance drill bits, keeping your tool setup simple and reducing job-site costs.
• Hex-washer head with no separate washer needed - delivers a clean, finished appearance at the installed surface while eliminating an extra component from the assembly process.
• Innovative carbon-steel cutting thread with minimal carbon-steel exposure - effectively cuts concrete during installation while keeping the amount of carbon steel in the anchor to a minimum, which means less expansion stress and better concrete integrity.
• Type 316 stainless steel construction - the preferred grade for saltwater, marine, and chemically corrosive environments, offering superior long-term corrosion resistance compared to standard stainless options.
• Single-use design - each anchor is intended for one installation only, ensuring thread integrity and full rated load capacity are maintained throughout the service life of the connection.

Why This Product

• Built for the harshest environments - Type 316 stainless steel is specifically identified as the optimal choice when saltwater exposure, chemical solutions, or extreme corrosive conditions are present, making this anchor the appropriate selection where a standard anchor would corrode and fail prematurely.
• Seismic and static qualification in one anchor - the Titen HD is qualified for both loading condition types, meaning a single anchor product can satisfy a broader range of code-required applications without sourcing multiple solutions.
• Faster, simpler installation with standard tooling - compatible with an impact wrench or hand tool using a 1 1/8 in. wrench, and requiring only a standard ANSI tolerance drill bit, this anchor reduces installation time and avoids the need for specialty equipment on the job site.
• Proven load-transfer engineering - the undercutting thread design works with the base material rather than against it, giving structural professionals a mechanically sound anchoring solution they can specify with confidence in concrete and masonry construction.

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: THD75700H6SS
• Diameter: 3/4 in.
• Length: 7 in.
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Head Type: Hex-Washer Head
• Drive/Wrench Size: 1-1/8 in. Hex
• Installation Method: Installs with an impact wrench or by hand tool; wrench size 1-1/8 in.
• Recommended Fixture Hole Size: 7/8 to 15/16 in.
• Packaging: Packs of 5 and Cartons of 10

Approved Applications

• Concrete and masonry anchoring in corrosive or extreme environments
• Saltwater and marine environments where superior corrosion resistance is required
• Applications involving exposure to chemical or corrosive solutions
• Static and seismic loading conditions requiring qualified anchor performance

Frequently Asked Questions

What makes the Type 316 stainless steel version preferable to Type 304 for certain applications?

Type 316 is the optimal choice for applications in corrosive or extreme environments such as salt water, or when chemical or corrosive solutions are present. Type 304 is a cost-effective solution for less extreme applications where the environment may be wet, moist, or damp.

Can the Titen HD screw anchor be removed and reinstalled?

No. Use a Titen HD screw anchor one time only - installing the anchor multiple times may result in excessive thread wear and reduce load capacity.

Do I need a special drill bit to install the THD75700H6SS?

No special drill bit is required. The Titen HD is designed to install using standard-sized ANSI tolerance drill bits, simplifying the installation process.

What tool is needed to install this anchor, and what fixture hole size is recommended?

The anchor installs with an impact wrench or by hand tool using a 1-1/8 in. wrench. The recommended fixture hole size is 7/8 to 15/16 in.

Note: Product dimensions and/or thread length may differ from picture. Please see the item description above for specifications.