The Simpson Titen HD 1/4 in. x 4 in. Countersunk Head Heavy-Duty Screw Anchor in Type 316 Stainless Steel is a high-performance concrete and masonry screw anchor built to meet the demands of structural, seismic, and corrosive-environment applications. Fabricated from Type 316 stainless steel, this anchor delivers severe-level corrosion resistance for reliable, long-lasting performance in harsh outdoor or exposed conditions. The countersunk head profile enables flush-mount installations and cleaner surface results on exposed through-set applications - making this anchor a versatile solution where both structural integrity and finished appearance matter.

Key Features

• Qualified for static and seismic loading conditions - gives contractors and builders confidence that this anchor meets performance requirements in seismic and wind-governed structural applications.
• Hole size same as anchor size (1/4 in.) - simplifies layout and drilling by eliminating the need to account for different bit and anchor diameters.
• Compatible with standard-sized ANSI tolerance drill bits - no specialty tooling required, reducing setup time and jobsite cost.
• Removable after installation - supports temporary anchoring scenarios or applications where fixtures may need to be repositioned or relocated later.
• T30 6-lobe drive reduces driver-bit cam-outs - results in easier, more controlled driving and less risk of stripping compared to traditional recessed anchor heads.
• Countersunk head allows flush-mount installation - ideal for applications where a low-profile surface finish is required and a hex head would not be appropriate.
• Serrated teeth on the anchor tip facilitate cutting and reduce installation torque - makes the anchor easier to drive while protecting the base material during installation.
• Type 316 stainless steel construction provides severe-level corrosion resistance - makes this anchor well suited for outdoor, coastal, or otherwise corrosive environments where carbon steel anchors would deteriorate.
• Driver bit included in each pack - ensures installers have the correct T30 bit on hand without a separate purchase.

Why This Product

• Built for corrosive and outdoor environments - Type 316 stainless steel offers severe-level corrosion resistance, making this anchor a dependable choice for coastal, chemical-exposure, or long-term outdoor installations where standard carbon steel anchors would be inadequate.
• Flush-mount capability opens up more application types - the countersunk head style allows this screw anchor to sit flush with the fixture surface, enabling clean through-set installations and applications where a protruding hex head would interfere with the finished result.
• Seismic qualification adds design flexibility - approval for both static and seismic loading conditions means engineers and contractors can specify this anchor with confidence across a wider range of structural projects, including those governed by wind or seismic design requirements.
• Straightforward installation with no special tooling - compatibility with standard ANSI tolerance drill bits and the inclusion of a driver bit in each pack means this anchor is ready to install without additional equipment, keeping the process efficient on the jobsite.

Specifications

• Model No.: THDC25400CS6SS
• Anchor Size: 1/4 in. x 4 in.
• Diameter: 1/4 in.
• Head Type: Countersunk Head
• Head Diameter: 1/4 in.
• Drive Type: T30 6-Lobe
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Drill Bit Diameter: 1/4 in.
• Recommended Fixture Hole Size: 3/8 to 7/16 in.

Approved Applications

• Cracked and uncracked concrete anchoring
• Masonry anchoring
• Flush-mount and through-set applications requiring a low-profile surface finish
• Seismic and wind-governed structural anchoring conditions
• Temporary anchoring or applications where fixtures may need to be relocated
• Outdoor and corrosive environments requiring severe-level corrosion resistance

What's Included

Each pack contains (25) Countersunk Titen HD Anchors, Driver bit included in each box.

Frequently Asked Questions

What type of drive does the Titen HD THDC25400CS6SS use, and why does it matter?

This anchor uses a T30 6-lobe drive. The 6-lobe drive reduces driver-bit cam-outs during installation, resulting in easier driving and less risk of stripping compared to traditional recessed anchor heads.

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, with the hole size being the same as the anchor size - 1/4 in.

Why choose Type 316 stainless steel over carbon steel for this anchor?

Type 316 stainless steel provides severe-level corrosion resistance, making it the preferred choice for outdoor, high-moisture, or otherwise corrosive environments where a carbon steel anchor would be vulnerable to degradation over time.

Can this anchor be removed after installation?

Yes. The Titen HD screw anchor is removable, making it ideal for temporary anchoring or applications where fixtures may need to be moved or reconfigured at a later time.

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