The Simpson Titen HD 3/4 in. x 8-1/2 in. Type 304 Stainless Steel Heavy-Duty Screw Anchor is a state-of-the-art fastening solution engineered for reliable performance in concrete and masonry across a wide range of environments. Built from Type 304 stainless steel and featuring an innovative heat-treated carbon-steel cutting thread, this heavy-duty screw anchor delivers fast, efficient installation with long-lasting corrosion resistance - making it the dependable choice for wet, moist, or damp conditions where anchor integrity cannot be compromised.

Key Features

• Qualified for static and seismic loading conditions - gives contractors and engineers the confidence to use this anchor in structurally demanding applications where performance standards must be met.
• Undercutting thread design - efficiently transfers load directly to the base material, creating a secure mechanical hold in concrete and masonry without relying on expansion pressure alone.
• No special drill bit required - designed to install using standard-sized ANSI tolerance drill bits, reducing tooling costs and simplifying jobsite setup.
• Hex-washer head design - eliminates the need for a separate washer, saving installation steps and delivering a clean, professional appearance once set.
• Innovative carbon-steel cutting thread on a stainless steel body - the carbon-steel thread cuts effectively through concrete while minimizing the total amount of carbon steel in the anchor, which means less expansion force and reduced risk of substrate cracking.
• Type 304 stainless steel construction - provides reliable corrosion resistance in wet, moist, or damp environments at a cost-effective price point compared to Type 316, making it practical for a broad range of non-extreme applications.
• Installs with an impact wrench or hand tool using a 1 1/8 in. wrench - compatible with common jobsite tools so crews can work efficiently without specialized equipment.
• Single-use design - the anchor is intended for one-time installation only; reinstalling may cause excessive thread wear and reduce load capacity, so buyers should plan placements carefully before driving.

Why This Product

• Corrosion resistance built into the anchor body - Type 304 stainless steel construction makes this screw anchor a practical long-term solution for concrete and masonry fastening in environments prone to moisture, giving buyers durability without the premium cost of Type 316.
• Seismic and static load qualification - this anchor is qualified for both seismic and static loading conditions, broadening its suitability across project types and helping contractors meet code requirements with a single, dependable product.
• Streamlined installation with standard tooling - because no special drill bit is needed and the hex-washer head requires no separate washer, this anchor reduces the number of components and tools required on site, keeping labor time and material costs down.
• Innovative dual-material thread technology - the combination of a stainless steel body with heat-treated carbon-steel cutting threads allows this anchor to cut cleanly into concrete and masonry while keeping carbon steel content low, reducing expansion stress on the surrounding base material for a more reliable connection.

Specifications

• Model Number: THD75812H4SS
• Material: Type 304 Stainless Steel
• Finish: Type 304 Stainless Steel
• Diameter: 3/4 in.
• Length: 8-1/2 in.
• Wrench Size: 1-1/8 in.
• Recommended Fixture Hole Size: 7/8 to 15/16 in.
• Installation Method: Impact wrench or hand tool
• Packaging: Packs of 5 and Cartons of 10

Approved Applications

• Fastening into concrete and masonry substrates
• Static loading applications requiring a dependable screw anchor solution
• Seismic loading conditions where qualified anchor performance is required
• Wet, moist, or damp environments where corrosion resistance is essential

Frequently Asked Questions

What base materials is the Titen HD THD75812H4SS designed for?

The Titen HD heavy-duty screw anchor is designed for installation in concrete and masonry. Its thread design undercuts to efficiently transfer the load directly to the base material for a secure hold.

Do I need a special drill bit to install this screw anchor?

No special drill bit is required. The THD75812H4SS is designed to install using standard-sized ANSI tolerance drill bits, simplifying setup and reducing the need for specialized tooling on the jobsite.

Can the Titen HD screw anchor be removed and reinstalled?

No. The Titen HD screw anchor should be used one time only. Installing the anchor multiple times may result in excessive thread wear and reduce its load capacity, compromising the integrity of the connection.

Why is Type 304 stainless steel used in this anchor instead of Type 316?

Type 304 stainless steel is a cost-effective solution suited for less extreme applications where the environment may be wet, moist, or damp. Type 316 is the optimal choice for more corrosive or extreme environments such as saltwater exposure or when chemical or corrosive solutions are present.

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