The Simpson Titen HD 5/8 in. x 8 in. Washer-Head Heavy-Duty Screw Anchor is a high-strength carbon steel screw anchor built for reliable performance in cracked and uncracked concrete, as well as masonry. Its low-profile washer-head design is purpose-built for sill plate anchoring, where the minimal installed height allows modular wall and floor systems to be set directly on top without any need to notch the wall framing to clear the anchor head. The T60 6-lobe drive reduces stripping and eases driving, while serrated teeth on the tip facilitate cutting into the base material and reduce the torque required during installation - making this a practical, code-qualified solution for structural concrete and masonry anchoring under static, wind, and seismic loading conditions.

Key Features

• Qualified per ICC-ES AC193 and ACI 355.2 for cracked and uncracked concrete - gives engineers and contractors confidence the anchor meets recognized code requirements for static, wind, and seismic loading conditions.
• Standard fractional sizing - hole size matches anchor size - simplifies layout and drilling by eliminating the guesswork of upsizing or downsizing the hole relative to the anchor.
• Compatible with standard ANSI tolerance drill bits - no proprietary or specialty tooling is required, so installation fits into any standard workflow without additional procurement.
• Removable design - suitable for temporary anchoring or applications where fixtures may need to be repositioned, adding flexibility that bonded anchors cannot provide.
• Low-profile washer head - allows screw anchor use in applications incompatible with a hex head, including sill plate installations where a protruding head would interfere with framing or floor systems placed on top.
• Serrated teeth on the anchor tip - facilitate cutting into concrete or masonry and reduce installation torque, easing driving and reducing wear on tooling.
• T60 6-lobe drive - delivers better engagement between the bit and the anchor head, reducing the risk of cam-out and stripping during high-torque installation.
• Includes a 1/2 in. socket adapter and two T-drive bits - everything needed to begin installation is packaged with the anchors, reducing time spent sourcing compatible accessories.
• Zinc plated carbon steel construction - provides a durable finish suited for interior and protected applications; not recommended for permanent exterior use or highly corrosive environments.

Why This Product

• Code-qualified for demanding structural applications - dual qualification under ICC-ES AC193 and ACI 355.2 covers cracked and uncracked concrete for seismic, wind, and static loads, making this anchor suitable for projects where engineered, inspectable anchorage is required.
• Washer-head geometry solves a real installation problem - the low installed profile means modular wall panels and floor systems can sit flush over the anchored sill plate with no framing modifications, saving time and material on panelized or systems-built construction projects.
• Installs with tools already on the job - standard ANSI drill bits handle the hole, the included T-drive bits and socket adapter handle the driving, and no adhesive or special setting tools are needed, keeping the installation process straightforward and efficient.
• Removable when conditions change - unlike adhesive or expansion anchors that are permanent once set, this screw anchor can be backed out and the fixture repositioned, reducing risk and rework costs on projects where anchor placement may need to be adjusted.

Specifications

• Model Number (MPN): THDB62800WH
• Brand: Simpson Strong-Tie
• Anchor Diameter: 5/8 in.
• Anchor Length: 8 in.
• Head Diameter: 1 3/4 in.
• Drive Type: T60 6-Lobe
• TPI: 2 1/2
• Material: Carbon Steel
• Coating/Finish: Zinc Plated
• Recommended Fixture Hole Size: 7/8 in. to 15/16 in.

Approved Applications

• Cracked and uncracked concrete anchoring
• Masonry anchoring
• Sill plate anchoring to concrete or masonry substrates
• Modular wall and floor system installations requiring a low anchor-head profile
• Static, wind, and seismic loading conditions per ICC-ES AC193 and ACI 355.2
• Temporary anchoring or applications where fixtures may need to be repositioned

What's Included

Each pack contains (10) Washer-Head Titen HD Screw Anchors, 1/2-in. socket adapter and (2) T-drive bits.

Frequently Asked Questions

Can the Titen HD THDB62800WH be used in cracked concrete?

Yes. This anchor is qualified in accordance with ICC-ES AC193 and ACI 355.2 for use in both cracked and uncracked concrete under static, wind, and seismic loading conditions.

Do I need a special drill bit to install this anchor?

No special drill bit is required. The Titen HD is designed to install using standard-sized ANSI tolerance drill bits, and the hole size matches the 5/8 in. anchor size.

Why is a washer-head design used instead of a hex head?

The washer-head design provides a low installed profile, making it suitable for sill plate applications where modular wall and floor systems must be installed on top of the anchor without notching the wall framing. It also enables use in applications where a hex head is incompatible.

Is this anchor suitable for permanent outdoor or corrosive environments?

No. This anchor is zinc plated and is not recommended for permanent exterior use or highly corrosive environments. It is intended for interior or protected structural applications.

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