The Simpson Titen HD 5/8 in. x 10 in. Washer-Head Heavy-Duty Screw Anchor is a high-strength concrete and masonry screw anchor engineered for demanding structural applications in both cracked and uncracked concrete. Its low-profile washer-head design is purpose-built for sill plate installations and anywhere a minimal installed head height is critical - modular wall and floor systems can be set directly on top without notching the wall framing to clear the anchor head. The 6-lobe T60 drive and serrated cutting tip keep installation straightforward, and because the anchor is removable, it suits both permanent and temporary anchoring needs with equal confidence.

Key Features

• Qualified per ICC-ES AC193 and ACI 355.2 for cracked and uncracked concrete - meets recognized engineering standards for static, wind, and seismic loading conditions, giving contractors and inspectors a clear, code-supported approval path.
• Standard fractional sizing where the hole size matches the anchor size - eliminates guesswork on the job site; a standard 5/8 in. ANSI tolerance drill bit is all that is needed, with no specialty tooling to source or purchase.
• Washer-head design with a 1 3/4 in. head diameter - provides a significantly lower installed profile than a hex head, making it the correct choice for sill plate and modular construction applications where a protruding anchor head would interfere with framing or panels above.
• Serrated teeth on the anchor tip facilitate cutting and reduce installation torque - the anchor drives more efficiently into concrete or masonry, reducing operator fatigue and the risk of overdriving.
• Removable after installation - ideal for temporary anchoring scenarios or any application where fixtures may need to be repositioned or removed without damaging the base material.
• 1/2 in. socket adapter and two T-drive bits included in each box - the necessary drive accessories ship with the anchors so work can begin immediately without a separate trip for tooling.
• Zinc plated carbon steel construction - provides a corrosion-resistant finish suited for interior and protected installations; note that this finish is not recommended for permanent exterior use or highly corrosive environments.

Why This Product

• Engineered for real structural accountability - ICC-ES AC193 and ACI 355.2 qualification for cracked and uncracked concrete under seismic, wind, and static loads means this anchor is a defensible choice on permitted projects, not just a generic fastener.
• The washer head solves a specific installation problem - where a hex-head anchor would sit too high for wall panels, flooring systems, or sill plates to clear, the low-profile washer head eliminates the need to notch framing members, saving time and preserving structural integrity.
• No surprises on the job site - standard ANSI drill bit sizing, included drive bits and socket adapter, and a removable design mean this anchor is ready to install with common tools and flexible enough to adapt if plans change after installation.
• A heavy-duty screw anchor trusted for masonry and concrete alike - suitable across a range of base materials including cracked concrete, uncracked concrete, and masonry, this anchor reduces the need to stock multiple anchor types for mixed-substrate projects.

Specifications

• Model Number: THDB62100WH
• Material: Carbon Steel
• Coating/Finish: Zinc Plated
• Anchor Diameter: 5/8 in.
• Anchor Length: 10 in.
• Head Diameter: 1-3/4 in.
• Drive Type: T60 6-Lobe
• TPI: 2-1/2
• Drill Bit Diameter: 5/8 in.
• Recommended Fixture Hole Size: 7/8 to 15/16 in.

Approved Applications

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

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 Simpson THDB62100WH be used in cracked concrete?

Yes. The Titen HD washer-head screw 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 THDB62100WH is designed to install using standard-sized ANSI tolerance drill bits. The hole size matches the anchor size, so a standard 5/8 in. drill bit is all that is needed.

Why is the washer head preferred over a hex head in certain applications?

The washer head provides a significantly lower installed profile than a hex head, making it ideal for sill plate applications where modular wall or floor systems need to be installed directly on top of the anchor without requiring notching of the wall framing. It is also used in applications where a hex-head design is physically incompatible.

Is this anchor suitable for permanent outdoor or corrosive environments?

No. The THDB62100WH features a zinc-plated finish and is not recommended for permanent exterior use or highly corrosive environments. For applications exposed to the elements or corrosive conditions, a stainless steel variant would be more appropriate.

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