The Simpson Titen HD 3/4 in. x 7 in. Type 304 Stainless Steel Heavy-Duty Screw Anchor is a premium concrete and masonry fastener built for reliable performance in wet, moist, or damp conditions. Engineered by Simpson with an innovative combination of Type 304 stainless steel construction and heat-treated carbon-steel cutting threads, this heavy-duty screw anchor delivers fast, efficient installation alongside long-lasting corrosion resistance - making it the cost-effective choice for demanding anchoring applications where environmental exposure is a concern.

Key Features

• Qualified for static and seismic loading conditions - provides code-compliant confidence for a wide range of structural anchoring applications, including those in seismic zones
• Thread design undercuts to efficiently transfer the load to the base material - maximizes holding strength in concrete and masonry by engaging the base material directly for a more secure connection
• No special drill bit required; designed to install using standard-sized ANSI tolerance drill bits - reduces tool costs and simplifies job site preparation, since no proprietary equipment is needed
• Hex-washer head requires no separate washer - speeds up installation and delivers a clean, finished appearance without the extra hardware
• Innovative carbon-steel thread limits the amount of carbon steel in the anchor - less carbon steel means less expansion during installation, reducing the risk of stress on the surrounding base material
• Made from Type 304 stainless steel - offers dependable corrosion resistance for applications in wet, moist, or damp environments at a cost-effective price point compared to Type 316
• Installs with an impact wrench or by hand tool using a 1 1/8 in. wrench - gives installers flexibility to use the tools already on hand, whether working in tight spaces or open conditions

Why This Product

• One anchor, multiple environment types - the Titen HD stainless steel screw anchor is designed to perform across a variety of installation environments, with Type 304 stainless steel making it a practical and durable solution wherever moisture or dampness is present
• Seismic and static load qualification built in - unlike basic concrete fasteners, this anchor carries qualification for both static and seismic loading conditions, giving contractors and engineers the documentation they need for code-sensitive projects
• No specialized tooling or extra hardware required - standard ANSI tolerance drill bits and a 1 1/8 in. wrench are all that is needed, so installation is straightforward and does not require purchasing additional accessories
• Engineered cutting threads reduce stress on the base material - the carbon-steel undercut thread design transfers load efficiently while minimizing expansion forces, helping protect the integrity of the surrounding concrete or masonry

Specifications

• Manufacturer: Simpson Strong-Tie
• MPN: THD75700H4SS
• Diameter: 3/4 in.
• Length: 7 in.
• Material: Type 304 Stainless Steel
• Finish: Type 304 Stainless Steel
• Head Type: Hex-Washer Head
• Drive Type: 1-1/8 in. Hex
• Recommended Fixture Hole Size: 7/8 to 15/16 in.
• Drill Bit Size: 3/4 in. (standard ANSI tolerance)
• Installation Method: Installs with an impact wrench or by hand tool; wrench size 1-1/8 in.
• Packaging: Packs of 5 and Cartons of 10

Approved Applications

• Concrete anchoring in wet, moist, or damp environments
• Masonry anchoring requiring corrosion-resistant fasteners
• Static load applications requiring a qualified, code-compliant anchor
• Seismic loading conditions where anchor qualification is required
• Applications where Type 304 stainless steel provides a cost-effective corrosion-resistance solution

Frequently Asked Questions

Can the Titen HD screw anchor be removed and reinstalled in the same hole?

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 load capacity, which could compromise the integrity of the connection.

Does this anchor require a special drill bit for installation?

No special drill bit is required. The Simpson THD75700H4SS is designed to install using standard-sized ANSI tolerance drill bits with a 3/4 in. diameter drill bit.

What tool is needed to install this anchor?

This anchor installs with an impact wrench or by hand tool using a 1-1/8 in. wrench size, making installation straightforward without the need for specialized equipment.

What is the difference between Type 304 and Type 316 stainless steel for this anchor, and when should I choose Type 304?

Type 304 is a cost-effective solution for less extreme applications where the environment may be wet, moist, or damp. Type 316 is the optimal choice for applications in corrosive or extreme environments such as salt water, or when chemical or corrosive solutions are present. Choose Type 304 when your application does not involve exposure to those more aggressive conditions.

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