The Simpson Titen HD 5/8 in. x 6 in. Mechanically Galvanized Washer-Head Heavy-Duty Screw Anchor is a high-strength concrete and masonry anchor built for demanding structural connections in both cracked and uncracked concrete. Its low-profile washer head is engineered for sill plate anchoring and any installation where a hex head would be incompatible or where a minimal installed height is critical - allowing modular wall and floor systems to sit flush on top without requiring notching of the wall framing. The mechanically galvanized finish is code listed for exterior applications, making this anchor a reliable choice for exposed and weather-adjacent installations.

Key Features

• Qualified per ICC-ES AC193 and ACI 355.2 for cracked and uncracked concrete under static, wind, and seismic loading - gives engineers and installers the code-backed confidence needed for structural and seismic applications.
• Standard fractional sizing with hole size matching anchor size - simplifies layout and drilling by eliminating the guesswork of mismatched drill-to-anchor conversions.
• Compatible with standard ANSI tolerance drill bits - no proprietary tooling required, so installation fits into any standard workflow without additional equipment purchases.
• T60 6-lobe drive - reduces cam-out and stripping during driving, resulting in a faster, more reliable installation compared to traditional drive styles.
• Washer-head design with 1 3/4 in. head diameter - provides broad bearing surface and a low installed profile, making it the right choice where hex-head anchors cannot be used or would interfere with overlying materials.
• Mechanically galvanized finish is code listed for exterior use - makes this anchor suitable for outdoor structural connections where corrosion resistance and code compliance are both required.
• Removable after installation - supports temporary anchoring scenarios and applications where fixtures may need to be repositioned or replaced over time.
• Each box includes a 1/2 in. socket adapter and two T-drive bits - provides the necessary accessories out of the box so installation can begin immediately without sourcing additional hardware.

Why This Product

• Versatile code-listed performance across concrete and masonry - full qualification for cracked and uncracked concrete under static, wind, and seismic conditions means this anchor covers a wide range of structural anchoring requirements under a single listed product.
• Purpose-built washer head for low-clearance and flush-mount applications - the low installed profile allows wall framing and floor systems to be placed directly over the anchor without modification, saving labor time on sill plate and modular construction projects.
• Exterior-rated mechanically galvanized coating - unlike standard zinc-plated fasteners, the mechanically galvanized finish meets the code listing requirements for exterior use, reducing the risk of selecting an anchor that falls short of project specifications.
• Ready-to-install kit with no special tooling needed - the inclusion of a 1/2 in. socket adapter and two T-drive bits, combined with compatibility with standard ANSI drill bits, means contractors spend less time sourcing accessories and more time completing the installation.

Specifications

• Manufacturer Part Number (MPN): THDB62600WHMG
• Brand: Simpson Strong-Tie
• Anchor Diameter: 5/8 in.
• Anchor Length: 6 in.
• Head Diameter: 1-3/4 in.
• Drive Type: T60 6-Lobe
• Material: Carbon Steel
• Coating: Mechanically Galvanized
• Finish: Mechanically Galvanized
• Recommended Fixture Hole Size: 7/8 to 15/16 in.

Approved Applications

• Cracked and uncracked concrete (static, wind, and seismic loading conditions per ICC-ES AC193 and ACI 355.2)
• Masonry substrates
• Sill plate anchoring
• Exterior applications (code listed for exterior use)
• Temporary anchoring or applications where fixtures may need to be repositioned
• Installations requiring a low-profile head where a hex head is incompatible
• Modular wall and floor system installations requiring flush anchor seating

What's Included

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

Frequently Asked Questions

What base materials is the Titen HD THDB62600WHMG approved for use in?

The Titen HD washer-head screw anchor is approved for use in both cracked and uncracked concrete, as well as masonry. It is qualified in accordance with ICC-ES AC193 and ACI 355.2 for 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. Because it uses standard fractional sizing, the hole size matches the anchor size - 5/8 in. in this case.

Why choose a washer head over a hex head for this screw anchor?

The washer-head design provides a low installed profile, making it the preferred choice when a minimal head clearance is necessary - such as sill plate applications where modular wall or floor systems are installed directly on top. This eliminates the need to notch wall framing to accommodate the anchor head, and it suits applications where a hex head is otherwise incompatible.

Is this anchor removable, and is it suitable for exterior use?

Yes. The Titen HD screw anchor is removable, making it ideal for temporary anchoring or situations where fixtures may need to be moved. Additionally, the mechanically galvanized finish means this model is code listed for exterior applications.

Note: Product dimensions and/or thread length may differ from picture. Please refer to the specifications listed above for accurate product details.