The Simpson Titen HD 1/4 in. x 4-1/2 in. Countersunk Head Heavy-Duty Screw Anchor is a carbon steel concrete and masonry anchor engineered for demanding structural fastening in cracked and uncracked concrete and masonry substrates. The countersunk head profile delivers a flush-mount finish where a standard hex head anchor simply cannot, making it well suited for exposed through-set applications and anywhere a clean surface appearance is required. Zinc-plated for use in dry, interior, noncorrosive environments or temporary outdoor applications, this heavy-duty screw anchor is qualified for static and seismic loading conditions, giving installers confidence across a wide range of structural anchoring situations.

Key Features

• Qualified for static and seismic loading conditions - meets performance demands in both everyday and seismic- or wind-governed applications, reducing the need to source specialty anchors for code-sensitive projects.
• T30 6-lobe drive - reduces driver-bit cam-outs compared to traditional recessed anchor heads, resulting in faster, more controlled installation and less tool wear.
• Countersunk head style - allows for flush-mount installations not possible with a hex head, leaving a cleaner surface appearance for exposed through-set applications.
• No special drill bit required - designed to install using standard-sized ANSI tolerance drill bits with the hole size matching the anchor size, so there is no need to purchase additional tooling.
• Serrated teeth on the anchor tip - facilitate cutting into the base material and reduce installation torque, making the driving process easier on both the installer and the tool.
• Removable after installation - ideal for temporary anchoring or applications where fixtures may need to be relocated or repositioned, adding long-term flexibility to any installation.
• Standard fractional sizing - the hole size matches the anchor size, simplifying layout and reducing the chance of sizing errors on the job site.
• Driver bit included in each box - the compatible T30 driver bit ships with the anchors, so installers have everything needed to get started without a separate hardware run.

Why This Product

• Flush-mount capability opens up more application options - the countersunk head profile sits level with the fixture surface, making this anchor the right choice for through-set connections and finished surfaces where a protruding hex head would be unacceptable.
• Seismic and static qualification reduces project risk - because the Titen HD is qualified for both static and seismic loading conditions, contractors and engineers can specify it with confidence on projects subject to strict structural or code requirements.
• Simplified installation from start to finish - the combination of standard ANSI-compatible drill sizing, serrated tip geometry that cuts into the substrate, and a cam-out-resistant 6-lobe drive makes this anchor faster and less frustrating to install than anchors requiring specialty tooling or high driving torque.
• Removability adds value for temporary and phased installations - unlike adhesive or expansion anchors that are permanent once set, the Titen HD can be backed out and reinstalled, protecting the investment in fixtures that may need to move over the life of a project.

Specifications

• Model No.: THDB25412CS
• Material: Carbon Steel
• Coating/Finish: Zinc Plated
• Anchor Diameter: 1/4 in.
• Anchor Length: 4-1/2 in.
• Head Type: Countersunk Head
• Head Diameter: 1/4 in.
• Drive Type: T30 6-Lobe
• Drill Bit Diameter: 1/4 in.
• Recommended Fixture Hole Size: 3/8 to 7/16 in.

What's Included

Each pack contains (50) Countersunk Titen HD Anchors, Driver bit included in each box.

Frequently Asked Questions

What base materials is the Titen HD screw anchor designed for use in?

The Titen HD screw anchor is designed for use in cracked and uncracked concrete as well as masonry substrates.

Is the Titen HD countersunk anchor removable after installation?

Yes. The Titen HD is removable, making it ideal for temporary anchoring or applications where fixtures may need to be relocated or repositioned.

Can the Titen HD be used in outdoor or corrosive environments?

The zinc-plated carbon steel Titen HD is designed for dry, interior, noncorrosive environments or temporary outdoor applications. It is not recommended for permanent exterior use or highly corrosive environments. For long-lasting corrosion resistance, the Titen HD Type 316 stainless-steel option is available.

Do I need a special drill bit to install the Titen HD 1/4 in. screw anchor?

No special drill bit is required. The Titen HD is designed to install using standard-sized ANSI tolerance drill bits, with the hole size matching the anchor size of 1/4 in.

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