The Simpson Titen HD 3/8 in. x 1-3/4 in. Heavy-Duty Screw Anchor is a high-strength concrete and masonry screw anchor engineered for optimum performance in both cracked and uncracked concrete. Tested and qualified under static and seismic loading conditions, it features self-undercutting, non-expansion characteristics that make it well-suited for structural applications even at reduced edge distances and spacings. The zinc-plated carbon steel construction is recommended for permanent dry, interior non-corrosive environments or temporary outdoor applications.

Key Features

• Qualified for static and seismic loading conditions - gives builders and contractors confidence the anchor meets structural demands in seismically active regions and standard load scenarios alike.
• Self-undercutting thread design transfers load directly to the base material - delivers reliable holding strength in concrete and masonry without the variables associated with expansion-style anchors.
• No special drill bit required - installs with standard-sized ANSI tolerance drill bits, reducing tool costs and simplifying the job for crews working in the field.
• Integrated hex-washer head - eliminates the need for a separate washer, saving installation time and producing a clean, professional finished appearance.
• Specialized heat-treating process on the carbon steel tip - creates the hardness needed for clean cutting through concrete and masonry without sacrificing the ductility of the anchor body.
• Zinc-plated finish - allows use in temporary exterior environments while maintaining performance in permanent dry, interior non-corrosive applications.
• Single-use design - the anchor is intended for one installation only; reinstalling may cause excessive thread wear and reduce load capacity, so plan placement carefully before driving.

Why This Product

• Dual-environment concrete performance - unlike anchors rated for uncracked concrete only, the Titen HD is specifically tested and approved for both cracked and uncracked concrete, making it a single versatile solution across a wider range of structural anchoring conditions.
• Seismic and static code confidence - with qualification under both static and seismic loading conditions, this heavy-duty screw anchor is appropriate for projects in areas with strict structural and seismic code requirements, reducing the need to source separate specialty fasteners.
• Straightforward installation with standard tooling - the ANSI tolerance drill bit compatibility and integrated hex-washer head mean no specialty tools or extra hardware are needed, keeping installations efficient and consistent on the job site.
• Structural performance at tight edge distances - the non-expansion, self-undercutting design allows use at reduced edge distances and spacings where traditional expansion anchors may not be permitted, giving engineers and installers more flexibility in layout and design.

Specifications

• Manufacturer Part Number (MPN): THD37134H
• Material: Carbon Steel
• Coating: Zinc Plated
• Finish: Zinc Plated
• Diameter: 3/8 in.
• Length: 1-3/4 in.
• TPI: 3-1/3
• Recommended Fixture Hole Size: 1/2 to 9/16 in.
• Packaging: Packs of 50 and Cartons of 250

Approved Applications

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

Frequently Asked Questions

Can the Titen HD anchor be used in cracked concrete?

Yes. The Titen HD anchor is specifically designed and tested to provide outstanding performance in both cracked and uncracked concrete under both static and seismic loading conditions.

Does installing the Titen HD 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 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.

Is the Titen HD suitable for outdoor use?

The zinc-plated carbon steel Titen HD anchor can be used for temporary exterior applications. For permanent installations, it is recommended for dry, interior non-corrosive environments only.

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