The Simpson Titen HD 3/8 in. x 5 in. Type 304 Stainless Steel Heavy-Duty Screw Anchor is engineered for concrete and masonry installations where long-term corrosion resistance and fast, efficient anchoring are non-negotiable. Constructed from Type 304 stainless steel with an innovative heat-treated carbon-steel cutting thread, this heavy-duty screw anchor is purpose-built for wet, moist, or damp environments - delivering reliable load transfer and a clean finished appearance without the need for additional hardware or specialty tooling.

Key Features

• Qualified for static and seismic loading conditions - gives engineers and contractors the confidence to specify this anchor across a broad range of structural and code-sensitive applications.
• Undercutting thread design - efficiently transfers load directly to the base material, maximizing holding strength in concrete and masonry without relying on expansion pressure alone.
• No special drill bit required - installs using standard-sized ANSI tolerance drill bits, reducing tool inventory and simplifying the installation process on the jobsite.
• Hex-washer head design - eliminates the need for a separate washer, saving time during installation and producing a clean, professional appearance once set.
• Innovative carbon-steel cutting thread with Type 304 stainless steel body - the thread cuts concrete effectively while keeping the overall carbon-steel content to a minimum, which means less expansion stress on the base material and reduced risk of edge or spacing failures.
• Installs with an impact wrench or by hand tool using a 9/16 in. wrench - compatible with standard power and hand tools so crews can work efficiently without specialized equipment.
• Single-use anchor design - each anchor is intended for one-time installation; reusing it risks excessive thread wear and reduced load capacity, so the design prioritizes integrity of the final installed connection.

Why This Product

• Corrosion resistance built for real-world conditions - Type 304 stainless steel construction makes this screw anchor a cost-effective, dependable choice for applications in wet, moist, or damp environments where carbon-steel anchors would be prone to degradation over time.
• Seismic and static load qualification in one anchor - rather than stocking separate fasteners for different loading scenarios, this single anchor solution meets the requirements for both static and seismic conditions, streamlining procurement and jobsite logistics.
• Faster installation with no specialty tooling - compatibility with standard ANSI tolerance drill bits and a standard 9/16 in. wrench or impact driver means less setup time and no additional tool costs, which translates directly to lower installed cost per anchor.
• Proven Simpson engineering for concrete and masonry - the combination of a stainless steel body with heat-treated carbon-steel cutting threads reflects a purpose-built design that balances corrosion resistance with the mechanical performance needed to anchor reliably into concrete and masonry substrates.

Specifications

• Model Number: THD37500H4SS
• Material: Type 304 Stainless Steel
• Finish: Type 304 Stainless Steel
• Diameter: 3/8 in.
• Length: 5 in.
• Wrench Size: 9/16 in.
• Recommended Fixture Hole Size: 1/2 to 9/16 in.
• Installation Method: Installs with an impact wrench or by hand tool
• Packaging: Packs of 50 and Cartons of 100

Frequently Asked Questions

What base materials is the Titen HD stainless steel screw anchor designed for?

The Titen HD stainless steel screw anchor is designed for installation into concrete and masonry. Its thread design undercuts the base material to efficiently transfer load, making it suitable for a variety of concrete and masonry applications.

Do I need a special drill bit to install the THD37500H4SS?

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

Can the Titen HD screw anchor be removed and reinstalled?

No. The Titen HD screw anchor should be used one time only. Installing the anchor multiple times may result in excessive thread wear and reduce load capacity.

What is the difference between Type 304 and Type 316 stainless steel for this anchor?

Type 304 stainless steel is a cost-effective solution for less extreme applications where the environment may be wet, moist, or damp. 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.

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