The Simpson Titen HD 3/8 in. x 3 in. Countersunk Head Heavy-Duty Screw Anchor in Type 316 Stainless Steel delivers high-performance anchoring in cracked and uncracked concrete as well as masonry, combining severe-level corrosion resistance with a clean, flush-mount profile. Engineered by Simpson for demanding structural and architectural applications, this screw anchor is qualified for both static and seismic loading conditions, making it a dependable solution for coastal, marine, or other corrosive environments where long-term holding power is non-negotiable. The countersunk head keeps surfaces smooth and unobstructed, and the T50 6-lobe drive system reduces cam-outs for faster, more reliable installation.

Key Features

• Type 316 Stainless Steel construction - provides severe-level corrosion resistance for lasting performance in harsh, moisture-exposed, or chemically aggressive environments.
• Qualified for static and seismic loading conditions - gives installers and engineers confidence that this anchor meets code requirements for wind-governed and seismic structural applications.
• Countersunk head design - enables a flush-mount profile and a cleaner surface appearance for exposed through-set applications where a protruding hex head is not acceptable.
• T50 6-lobe drive - reduces driver-bit cam-outs compared to traditional recessed anchor heads, resulting in easier and faster installation.
• No special drill bit required - installs using standard-sized ANSI tolerance drill bits with the same diameter as the anchor, simplifying job-site preparation.
• Serrated cutting teeth on the tip - facilitate cutting into the base material and reduce installation torque, lowering strain on tools and installers.
• Removable anchor design - makes this screw anchor ideal for temporary anchoring or applications where fixtures may need to be repositioned or removed without damaging the base material.
• Driver bit included in each box - means the right tool for the job arrives with the anchors, so work can begin immediately without sourcing additional hardware.

Why This Product

• Built for corrosive conditions other anchors can't handle - Type 316 stainless steel goes beyond basic corrosion protection, making this anchor well suited for marine, coastal, and chemically exposed environments where standard carbon steel anchors would degrade over time.
• Seismic and wind qualification removes guesswork on critical projects - with approval for both static and seismic loading, this anchor supports structural and safety-critical installations where performance under dynamic forces must be verified.
• Flush installation expands where anchors can be used - the countersunk head sits level with or below the fixture surface, opening up applications in finished spaces, pedestrian areas, or anywhere a protruding fastener head creates a safety or aesthetic problem.
• Straightforward installation using common tools - compatibility with standard ANSI tolerance drill bits and the included driver bit means no specialty equipment is needed, reducing setup time and keeping projects on schedule.

Specifications

• Model No.: THD37300CS6SS
• Anchor Size: 3/8 in. x 3 in.
• Diameter: 3/8 in.
• Head Type: Countersunk Head
• Head Diameter: 3/8 in.
• Drive Type: T50 6-Lobe
• Material: Type 316 Stainless Steel
• Finish: Type 316 Stainless Steel
• Drill Bit Diameter: 3/8 in.
• Recommended Fixture Hole Size: 1/2 to 9/16 in.

Approved Applications

• Cracked and uncracked concrete anchoring
• Masonry anchoring applications
• Flush-mount and through-set installations requiring a low-profile surface appearance
• Seismic and wind-governed structural anchoring conditions
• Severe-exposure or corrosive environments where Type 316 stainless steel is required
• Temporary anchoring or applications where fixtures may need to be repositioned or removed

What's Included

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

Frequently Asked Questions

What type of environments is the Titen HD Type 316 Stainless Steel anchor designed for?

The Titen HD Type 316 Stainless Steel screw anchor is engineered to provide severe-level corrosion resistance, making it well suited for harsh, corrosive, or moisture-exposed environments where long-lasting performance is required. This distinguishes it from the standard carbon steel Titen HD, which is designed for dry, interior, noncorrosive environments or temporary outdoor applications.

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. The hole size is the same as the anchor size - 3/8 in. - so no upsizing or specialty tooling is needed. A driver bit is also included in each box.

Why choose a countersunk head style over a hex head?

The countersunk head style is specifically designed for applications that require a flush-mount profile. Unlike a hex head, the countersunk head sits flush with or below the surface of the fixture, providing a cleaner surface appearance for exposed through-set applications and enabling installations where a protruding head is not acceptable.

Is this anchor suitable for seismic applications?

Yes. The Titen HD is qualified for both static and seismic loading conditions, and it offers industry-leading performance even in seismic and wind-governed conditions, making it appropriate for use in regions or projects with seismic design requirements.

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