Simpson Titen HD 3/8 in. x 3 in. Countersunk Head Heavy-Duty Screw Anchor is a carbon steel concrete and masonry anchor engineered for reliable, high-performance anchoring in dry, interior, noncorrosive environments as well as temporary outdoor applications. The countersunk head profile enables flush-mount installations in situations where a standard hex head simply will not work, while the T50 6-lobe drive and serrated tip work together to make driving faster, easier, and more controlled. Qualified for both static and seismic loading conditions, this screw anchor delivers structural confidence in demanding applications - including seismic and wind-governed connections - without requiring any specialized tooling.

Key Features

• Qualified for static and seismic loading conditions - gives contractors and engineers confidence that this anchor meets the structural demands of seismic and wind-governed applications.
• Countersunk head design - allows for flush-mount installations not possible with a hex head, and leaves a cleaner surface appearance for exposed through-set applications.
• T50 6-lobe drive - reduces driver-bit cam-outs compared to traditional recessed anchor heads, resulting in faster, less frustrating installation.
• Serrated teeth on the anchor tip - facilitate cutting into the substrate and reduce installation torque so the anchor drives smoothly without excessive effort.
• Standard fractional sizing - hole size same as anchor size - no special drill bit required; installs using standard-sized ANSI tolerance drill bits you already own.
• Removable after installation - ideal for temporary anchoring or any application where fixtures may need to be repositioned or moved later.
• Zinc-plated carbon steel construction - suited for dry, interior, noncorrosive environments and temporary outdoor use; buyers requiring long-term corrosion resistance should consider the Type 316 stainless-steel Titen HD option.
• Driver bit included in each box - everything needed for installation arrives together, eliminating a trip to source a compatible bit before starting the job.

Why This Product

• One drill bit does it all - because the hole size matches the anchor size and standard ANSI tolerance drill bits are all that is needed, there is no extra equipment to buy or track down before work begins.
• Flush and clean where it counts - the countersunk head opens up installation scenarios - flush-mount brackets, exposed through-set connections, and surface-sensitive applications - that a hex-head anchor simply cannot handle as neatly.
• Built for seismic and structural environments - qualification for both static and seismic loading conditions means this anchor is a dependable choice for structural connections in regions with seismic or high-wind design requirements, not just routine fastening tasks.
• Flexibility to adapt - the removable design means the anchor is not a permanent commitment, making it equally useful for temporary outdoor installations, staged construction, or any project where fixture layouts may change.

Specifications

• Model Number: THD37300CS
• Anchor Size: 3/8 in. x 3 in.
• Material: Carbon Steel
• Coating/Finish: Zinc Plated
• Head Type: Countersunk Head
• Head Diameter: 3/8 in.
• Drive Type: T50 6-Lobe
• 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
• Flush-mount and through-set applications requiring a low-profile countersunk head
• Dry, interior, noncorrosive environments
• Temporary outdoor applications
• Seismic and wind-governed structural connections

What's Included

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

Frequently Asked Questions

What substrate materials is the Titen HD THD37300CS designed to anchor into?

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

Does the countersunk head design provide any advantage over a standard hex head?

Yes. The countersunk head allows for flush-mount applications that are not possible with a hex head, and it also leaves a cleaner surface appearance for exposed through-set applications.

Can this anchor be removed after installation?

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

Is this anchor suitable for outdoor or corrosive environments?

The THD37300CS is zinc plated and is designed for use in 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.

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