The Simpson Titen HD 3/8 in. x 3 in. Heavy-Duty Screw Anchor is a high-strength screw anchor engineered for optimum performance in both cracked and uncracked concrete and masonry. Its self-undercutting, non-expansion design delivers reliable structural anchoring under both static and seismic loading conditions, making it well suited for demanding applications where consistent holding power and installation confidence matter most. Recommended for permanent dry, interior non-corrosive environments or temporary outdoor applications, this carbon steel anchor combines precision engineering with straightforward installation.

Key Features

• Qualified for static and seismic loading conditions - gives contractors and engineers confidence that this anchor meets the performance demands of structurally critical and seismic-zone projects.
• Thread design undercuts to efficiently transfer the load to the base material - maximizes holding strength by engaging the concrete or masonry directly, reducing reliance on friction or expansion forces.
• No special drill bit required; designed to install using standard-sized ANSI tolerance drill bits - simplifies job-site setup and reduces tooling costs by working with equipment already on hand.
• Hex-washer head requires no separate washer - speeds up installation and delivers a cleaner finished appearance without additional hardware.
• Specialized heat-treating process creates tip hardness for better cutting without compromising ductility - the anchor cuts cleanly into concrete while retaining the flexibility needed to perform under structural and seismic loads.
• Self-undercutting, non-expansion characteristics allow use at reduced edge distances and spacings - opens up more placement options on the job site, particularly in tight or congested anchor layouts.
• Zinc-plated carbon steel construction - suitable for temporary exterior applications in addition to permanent dry, interior non-corrosive environments.
• Single-use design - the anchor is intended to be installed one time only; reinstalling may cause excessive thread wear and reduce load capacity, so each anchor delivers its rated performance when used as directed.

Why This Product

• Dual-condition concrete performance - tested and proven in both cracked and uncracked concrete as well as uncracked masonry, this screw anchor handles a wider range of structural anchoring scenarios than anchors rated for uncracked concrete alone.
• Seismic and static load qualification - for projects in seismic zones or those requiring code-compliant structural connections, the Titen HD provides documented performance under both load types, reducing engineering uncertainty.
• Faster, simpler installation with standard tooling - because no proprietary drill bits or special installation tools are needed, crews can drive these heavy-duty concrete anchors quickly using standard ANSI tolerance bits, cutting labor time without sacrificing holding performance.
• Structural-grade anchoring at tighter spacings - the non-expansion, self-undercutting design minimizes stress on the base material, making this anchor a practical choice for structural applications where edge distances and anchor spacings are restricted.

Specifications

• Manufacturer Part Number (MPN): THD37300H
• Material: Carbon Steel
• Coating/Finish: Zinc Plated
• Diameter: 3/8 in.
• Length: 3 in.
• TPI: 3 1/3
• Recommended Fixture Hole Size: 1/2 to 9/16 in.
• Packaging: Packs of 50 and Cartons of 200

Approved Applications

• Structural anchoring in cracked and uncracked concrete
• Anchoring into uncracked masonry
• Applications subject to static loading conditions
• Applications subject to seismic loading conditions
• Permanent dry, interior non-corrosive environments
• Temporary outdoor applications
• Installations requiring reduced edge distances and spacings

Frequently Asked Questions

Can the Titen HD 3/8 in. x 3 in. anchor be used in cracked concrete?

Yes. The Titen HD anchor is specifically designed and tested for optimum performance in both cracked and uncracked concrete, as well as uncracked masonry, under both static and seismic loading conditions.

Does installation require a special drill bit?

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

Can this anchor be reused or 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.

Is the Titen HD THD37300H suitable for outdoor use?

The zinc-plated carbon steel construction makes this anchor suitable for temporary exterior applications. It is recommended for permanent use only in dry, interior non-corrosive environments.

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