The Simpson Titen HD 1/4 in. x 3 in. Type 316 Stainless Steel Countersunk Head Heavy-Duty Screw Anchor is a professional-grade concrete and masonry screw anchor engineered for demanding structural and fastening applications. Built from Type 316 stainless steel, this heavy-duty anchor delivers severe-level corrosion resistance that makes it a reliable choice for harsh or moisture-exposed environments where standard carbon steel anchors fall short. The countersunk head enables a clean, flush-mount profile for applications where a low-profile or finished surface appearance is required, and the T30 6-lobe drive system makes installation faster and more consistent with less risk of bit cam-out. Qualified for both static and seismic loading conditions, this screw anchor meets the demands of code-sensitive structural work.

Key Features

• Type 316 stainless steel construction - provides severe-level corrosion resistance for long-term durability in wet, coastal, chemical-exposed, or other corrosive environments where standard anchors would degrade prematurely.
• Qualified for static and seismic loading conditions - meets performance requirements for seismic and wind-governed applications, giving structural professionals the confidence to specify this anchor on code-compliant projects.
• Countersunk head design - allows for flush-mount installations that are not achievable with a hex head, and leaves a cleaner surface appearance for exposed through-set applications where aesthetics or clearance matter.
• T30 6-lobe drive - reduces driver-bit cam-outs compared to traditional recessed anchor heads, resulting in easier, cleaner installation and less wear on both the fastener and the drive bit.
• No special drill bit required - designed to install using standard-sized ANSI tolerance drill bits with a hole size equal to the anchor size, reducing tooling costs and simplifying job-site preparation.
• Serrated cutting teeth on the anchor tip - facilitate cutting into the base material and reduce installation torque, making the driving process smoother and less fatiguing during repeated use.
• Removable after installation - ideal for temporary anchoring scenarios or applications where fixtures may need to be repositioned or replaced, adding versatility that adhesive or expansion anchors cannot match.
• Driver bit included in each pack - eliminates the need to source a compatible T30 bit separately, so installers can get to work immediately right out of the box.

Why This Product

• Built for corrosive environments - the Type 316 stainless steel version goes well beyond what standard carbon steel anchors can handle, offering severe-level corrosion resistance that protects performance and structural integrity in outdoor, coastal, or chemically active settings over the long term.
• Seismic and wind qualification sets it apart - not all screw anchors are tested and qualified for dynamic loading. This anchor is qualified for both static and seismic conditions, making it a dependable option when local building codes or project specifications require documented performance under seismic or wind-governed loads.
• Installs flush for a finished look - the countersunk head style solves a common problem on exposed or finished surfaces where a protruding hex head would be unacceptable. Achieving a truly flush mount improves both surface appearance and fixture fit without additional modification.
• Simplifies the installation process from start to finish - with standard drill bit sizing, serrated tip geometry that cuts cleanly and reduces torque, a cam-out-resistant 6-lobe drive, and an included driver bit, this anchor is engineered to make the entire anchoring process faster, easier, and less error-prone on the job site.

Specifications

• Model No.: THDC25300CS6SS
• Brand: Simpson Strong-Tie
• Anchor Size: 1/4 in. x 3 in.
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• 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 (25) Countersunk Titen HD Anchors, Driver bit included in each box.

Frequently Asked Questions

What type of base material is the Titen HD screw anchor designed for?

The Titen HD heavy-duty screw anchor is designed for use in cracked and uncracked concrete as well as masonry, providing high-strength anchoring performance in both base material types.

Why choose the Type 316 stainless steel version of the Titen HD?

The Type 316 stainless steel option provides severe-level corrosion resistance, making it well suited for environments where long-lasting durability and resistance to corrosion are critical requirements, offering unsurpassed peace of mind compared to standard carbon steel versions.

What is the advantage of the countersunk head design?

The countersunk head style allows for flush-mount applications that are not possible with a hex head. Countersinking also leaves a cleaner surface appearance for exposed through-set applications, making it ideal wherever a low-profile or finished look is required.

Does the Titen HD require a special drill bit for installation?

No special drill bit is required. The Titen HD is designed to install using standard-sized ANSI tolerance drill bits, and the hole size is the same as the anchor size - 1/4 in. - simplifying the installation process. A T30 driver bit is also included in each box.

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