The Simpson Titen HD 3/4 in. x 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. Its self-undercutting, non-expansion design has been tested and shown to provide outstanding performance under both static and seismic loading conditions, making it a dependable choice for structural anchoring applications where reduced edge distances and spacings are required. Recommended for permanent dry, interior non-corrosive environments or temporary outdoor applications, this zinc-plated carbon steel anchor delivers the reliability and ease of installation that demanding structural projects require.

Key Features

• Qualified for static and seismic loading conditions - gives contractors and engineers confidence that the anchor meets the performance demands of code-sensitive structural applications.
• Self-undercutting thread design - efficiently transfers load to the base material without expansion pressure, making it suitable for installations at reduced edge distances and spacings where traditional expansion anchors may not perform.
• No special drill bit required - designed to install using standard-sized ANSI tolerance drill bits, reducing tool costs and simplifying job-site preparation.
• Hex-washer head design - eliminates the need for a separate washer, saving installation time and delivering a clean, finished appearance once set.
• Specialized heat-treating process - creates tip hardness for better cutting action without compromising the ductility of the carbon steel, balancing cutting performance with structural integrity.
• Zinc-plated carbon steel construction - suitable for permanent dry interior environments and temporary outdoor applications, offering flexibility across a range of project conditions.
• Single-use anchor design - installing the anchor multiple times may result in excessive thread wear and reduce load capacity, so each anchor is intended for one installation to ensure full rated performance.

Why This Product

• Engineered for the most demanding structural scenarios - the Titen HD's tested performance in both cracked and uncracked concrete under seismic and static loading conditions means it can be specified with confidence for applications where anchor failure is not an option.
• Faster, simpler installation without sacrificing performance - because standard ANSI tolerance drill bits are all that is needed and no separate washer is required, crews spend less time sourcing specialty tools and more time completing the work.
• Non-expansion design unlocks tighter layout flexibility - the self-undercutting mechanism avoids the outward pressure of traditional expansion anchors, allowing use at reduced edge distances and spacings that other anchor types cannot accommodate.
• A trusted Simpson anchor built to a heat-treated standard - Simpson's specialized heat-treating process on the carbon steel body balances tip hardness for cleaner cutting with the ductility needed to meet structural and seismic loading requirements.

Specifications

• Manufacturer Part Number (MPN): THD75400H
• Material: Carbon Steel
• Coating / Finish: Zinc Plated
• Diameter: 3/4 in.
• Length: 4 in.
• TPI: 2 1/4
• Recommended Fixture Hole Size: 7/8 to 15/16 in.
• Packaging: Packs of 10 and Cartons of 40

Approved Applications

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

Frequently Asked Questions

Can the Titen HD screw anchor be used in cracked concrete?

Yes. The Titen HD anchor is specifically designed for optimum performance in both cracked and uncracked concrete, and has been tested under both static and seismic loading conditions in those environments.

Does installing the Titen HD require a special drill bit?

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

Can the Titen HD 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 zinc-plated Titen HD suitable for outdoor use?

The zinc-plated carbon steel Titen HD anchor is recommended for permanent dry, interior non-corrosive environments or temporary outdoor applications. It is not intended for permanent exterior or corrosive environments.

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