The Simpson Titen HD 3/8 in. x 5 in. Type 316 Stainless Steel Heavy-Duty Screw Anchor is built for concrete and masonry anchoring where corrosion resistance is non-negotiable. Combining the proven strength of Type 316 stainless steel with an innovative heat-treated carbon-steel cutting thread, this heavy-duty screw anchor delivers fast, reliable installation in the harshest conditions - salt water exposure, chemical environments, and other extreme corrosive settings where a standard anchor simply won't hold up long-term.

Key Features

• Qualified for static and seismic loading conditions - gives you confidence the anchor meets performance requirements for both everyday structural loads and seismic applications.
• Undercutting thread design - efficiently transfers load directly into the base material, maximizing holding strength in concrete and masonry substrates.
• No special drill bit required - installs using standard-sized ANSI tolerance drill bits, so there is no need to source specialty tooling or change your existing workflow.
• Hex-washer head design - eliminates the need for a separate washer, simplifying installation and leaving a clean, finished appearance once set.
• Innovative carbon-steel cutting thread on a stainless body - the carbon-steel thread cuts concrete effectively while limiting the overall amount of carbon steel in the anchor, which means less expansion stress and a more controlled installation.
• Type 316 stainless steel construction - provides superior corrosion resistance against salt water, moisture, and chemical or corrosive solutions, making it the right choice for marine, industrial, and other extreme-environment applications.
• Single-use design - the anchor is engineered for one installation only; reinstalling it risks excessive thread wear and reduced load capacity, so plan your placement carefully before driving.

Why This Product

• Built for the harshest environments - Type 316 stainless steel is the optimal grade for salt water, chemical exposure, and extreme corrosive conditions, so this anchor keeps performing long after lesser materials would fail.
• Seismic and static qualification in one anchor - whether your project involves everyday structural anchoring or must meet seismic design requirements, this screw anchor is qualified for both, reducing the need to source different products for different job conditions.
• Fast, tool-friendly installation - compatible with a standard impact wrench or hand tool using a 9/16 in. wrench, and requiring only a common ANSI tolerance drill bit, this anchor fits naturally into existing workflows without added cost or complexity.
• Engineered load transfer with minimal expansion - the undercutting thread design combined with a minimized carbon-steel profile means the anchor seats securely while reducing stress on the surrounding base material, a clear advantage in demanding concrete and masonry applications.

Specifications

• Manufacturer Part Number (MPN): THD37500H6SS
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Diameter: 3/8 in.
• Length: 5 in.
• Recommended Fixture Hole Size: 1/2 to 9/16 in.
• Install With: Installs with an impact wrench or by hand tool; wrench size 9/16 in.
• Packaging: Packs of 50 and Cartons of 100

Approved Applications

• Anchoring into concrete and masonry substrates
• Installations in corrosive or extreme environments, including salt water exposure
• Applications where chemical or corrosive solutions are present
• Static and seismic loading conditions
• Wet, moist, damp, or marine-grade environments requiring Type 316 stainless steel performance

Frequently Asked Questions

What makes Type 316 stainless steel the right choice for this anchor?

Type 316 stainless steel is the optimal choice for applications in corrosive or extreme environments such as salt water, or when chemical or corrosive solutions are present. It provides superior corrosion resistance compared to other grades, making it ideal for demanding outdoor, marine, or industrial applications.

Do I need a special drill bit to install the Titen HD screw anchor?

No special drill bit is required. The Titen HD screw anchor is designed to install using standard-sized ANSI tolerance drill bits, making installation straightforward and convenient.

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, compromising the integrity of the connection.

What tools are needed to install the THD37500H6SS anchor?

The anchor installs with an impact wrench or by hand tool. A 9/16 in. wrench size is required for proper installation. The hex-washer head design eliminates the need for a separate washer and provides a clean installed appearance.

Note: Product dimensions and/or thread length may differ from picture. Please refer to the specifications listed above for accurate product details.