The Simpson Titen HD 5/8 in. x 4 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 outstanding structural reliability under both static and seismic loading conditions, making it a dependable choice for demanding concrete and masonry connections even at reduced edge distances and spacings. Built from carbon steel with a zinc-plated finish, the Titen HD is recommended for permanent dry, interior non-corrosive environments or temporary outdoor applications.

Key Features

• Qualified for static and seismic loading conditions - gives contractors and engineers confidence that this screw anchor meets performance requirements for both everyday structural loads and seismic events.
• Self-undercutting thread design transfers load efficiently to the base material - maximizes holding strength in concrete and masonry without relying on expansion pressure, making it safer at reduced edge distances and spacings.
• No special drill bit required - installs using standard-sized ANSI tolerance drill bits, so there is no need to source additional tooling before getting to work.
• Hex-washer head design - eliminates the need for a separate washer, saving installation time and producing a clean, finished appearance on the completed connection.
• Specialized heat-treating process on carbon steel - creates tip hardness for better cutting action during installation without sacrificing the ductility needed for structural performance.
• Zinc-plated carbon steel construction - supports use in temporary exterior applications in addition to permanent dry, interior non-corrosive environments, offering flexibility across project types.
• Single-use design by engineering intent - reinstalling the anchor multiple times may result in excessive thread wear and reduce load capacity, so each anchor is intended for one installation to preserve rated performance.

Why This Product

• Dual-condition concrete qualification - tested and proven in both cracked and uncracked concrete under static and seismic loading, this heavy-duty screw anchor covers the performance demands that many standard anchors cannot, reducing the need to specify different fasteners for different site conditions.
• Structural-grade reliability at tight spacings - the non-expansion, self-undercutting mechanism allows use at reduced edge distances and spacings without sacrificing load transfer, giving designers more layout flexibility in constrained structural connections.
• Straightforward installation with standard tooling - because standard-sized ANSI tolerance drill bits are all that is needed, crews can drive these heavy-duty concrete anchors without investing in specialty equipment, keeping project timelines and tool costs in check.
• Built-in washer head for a cleaner finish - the integrated hex-washer head removes one component from the fastening assembly, streamlining installation and delivering a professional, finished look on exposed structural connections.

Specifications

• Manufacturer Part Number (MPN): THDB62400H
• Brand: Simpson Strong-Tie
• Diameter: 5/8 in.
• Length: 4 in.
• TPI: 2 1/2
• Material: Carbon Steel
• Coating: Zinc Plated
• Finish: Zinc Plated
• Head Type: Hex-Washer Head
• Drive Type: 15/16 in. Hex
• Recommended Fixture Hole Size: 3/4 in. to 13/16 in.
• Packaging: Packs of 10 and Cartons of 40

Approved Applications

• Cracked and uncracked concrete under static loading conditions
• Cracked and uncracked concrete under seismic loading conditions
• Structural applications at reduced edge distances and spacings
• Permanent dry, interior non-corrosive environments
• Temporary outdoor applications
• Concrete and masonry structural connections

Frequently Asked Questions

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

Yes. The Titen HD is specifically designed for optimum performance in both cracked and uncracked concrete. It has been tested and shown to provide outstanding performance under both static and seismic loading conditions in cracked concrete.

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, making installation straightforward without additional tooling.

Can the Titen HD screw anchor be reused or reinstalled after removal?

No. Use a Titen HD screw anchor one time only - installing the anchor multiple times may result in excessive thread wear and reduce load capacity.

Is the Titen HD anchor 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 recommended for permanent exterior or corrosive environment installations.

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