Simpson Strong Tie THD37400HR30 Titen HD 3/8″ x 4″ Concrete Screw

Description

Product Overview

The Simpson Strong Tie THD37400HR30 Titen HD 3/8″ x 4″ concrete screw anchor is engineered for high‑load applications where both static and seismic forces are a concern. Constructed from fully threaded zinc, the fastener offers excellent corrosion resistance while maintaining the strength needed for demanding structural connections. The flanged hex head eliminates the need for a separate washer, delivering a clean, low‑profile finish that simplifies installation and reduces part count. A specialized heat‑treated tip provides superior cutting ability, allowing the anchor to penetrate concrete, masonry, and other dense substrates without the need for a special drill bit. Each package contains 30 anchors, each weighing 4.64 pounds, ensuring you have sufficient inventory for large‑scale projects. The product meets ANSI standards for concrete screws and is qualified for both static and seismic loading conditions, making it a reliable choice for commercial, industrial, and residential construction.

Usage

These anchors excel in a variety of environments, from new construction sites to retrofit upgrades in existing structures. They are ideal for securing structural steel members, equipment bases, electrical panels, and heavy‑duty fixtures to concrete slabs, walls, and footings. The design accommodates standard ANSI‑tolerance drill bits, so contractors can use common tools without additional equipment. Because the anchor is fully threaded, it distributes load evenly along the shaft, reducing stress concentrations and improving overall joint performance. Whether you are installing seismic bracing, anchoring heavy machinery, or fastening utility poles, the THD37400HR30 provides the confidence that the connection will hold under both normal service loads and the dynamic forces of an earthquake.

Why Choose Us

Choosing Simpson Strong Tie means selecting a brand with decades of expertise in structural fastening solutions. Our Titen HD line undergoes a proprietary heat‑treating process that hardens the tip while preserving ductility, delivering a balance of cutting efficiency and toughness that few competitors can match. Each anchor is rigorously tested to meet or exceed industry standards for load capacity, corrosion resistance, and durability. In addition, our commitment to quality extends beyond the product itself; we provide comprehensive technical support, detailed installation guidelines, and responsive customer service to help you achieve successful project outcomes. When you purchase this anchor, you also gain access to a network of resources, including engineering assistance and warranty coverage, ensuring long‑term performance and peace of mind.

Key Features

• Fully threaded zinc construction resists corrosion and distributes load evenly for long‑lasting performance.
• Flanged hex head eliminates the need for separate washers, simplifying installation and providing a clean finish.
• Heat‑treated tip cuts through concrete and masonry efficiently, reducing installation time and tool wear.
• Qualified for both static and seismic loading, meeting stringent building code requirements for safety.
• Backed by Simpson Strong Tie technical support and warranty, ensuring reliable after‑sales service.

FAQ

What drill size should I use for this anchor?

The THD37400HR30 is designed to be installed with a standard ANSI‑tolerance drill bit that matches the 3/8″ thread diameter. Typically, a 5/8″ to 3/4″ carbide drill bit provides the optimal hole size for full thread engagement while allowing the flanged head to sit flush with the concrete surface.

Can this anchor be used in masonry as well as concrete?

Yes. The heat‑treated tip and fully threaded design make the anchor suitable for both poured concrete and hardened masonry. For masonry, it is recommended to use a hammer drill with a masonry‑rated bit to achieve a clean, precise hole.

Is the zinc coating sufficient for outdoor or corrosive environments?

The zinc coating offers excellent corrosion resistance for most indoor and protected outdoor applications. In highly corrosive environments, such as coastal or chemical plant settings, additional protective measures like epoxy coating or stainless‑steel washers may be advisable.

How many anchors come in each package?

Each box contains 30 individual anchors, providing ample quantity for medium‑size projects while keeping inventory management simple.

What makes the Titen HD line different from standard concrete screws?

The Titen HD series undergoes a specialized heat‑treating process that hardens the tip for superior cutting performance without sacrificing the ductility of the shank. This results in faster installation, reduced tool wear, and a more durable fastener that can handle higher load demands, especially in seismic applications.