The Simpson Titen HD 1/4 in. x 1-5/8 in. Threaded Rod Hanger for 1/4 in. Rod is a high-strength screw anchor from Simpson engineered to suspend threaded rod from concrete slabs, beams, or concrete over metal for hanging pipes, cable trays, and HVAC equipment. Built from zinc-plated carbon steel, this anchor delivers low installation torque with no secondary setting required, and has been tested to offer code-listed performance in both cracked and uncracked concrete - including seismic loading conditions.

Key Features

• Thread design undercuts to efficiently transfer the load to the base material - load is directed into solid concrete rather than relying on surface friction, resulting in a more reliable and secure hold for suspended systems.
• Serrated cutting teeth and thread design enable quick and easy installation - less time drilling and driving means faster project completion without sacrificing anchoring integrity.
• Specialized heat-treating process creates greater hardness at the tip to facilitate cutting while the body remains ductile - the anchor cuts through concrete efficiently at the tip while the body flexes just enough to resist cracking under load.
• Designed to install using a rotary hammer or hammer drill with standard ANSI drill bits - no special tools are required, so crews can use equipment already on the job site and keep the work moving.
• Installs with standard-sized sockets using a 3/8 in. wrench - compatible with common drive tools, reducing setup time and the need for specialty hardware.
• Code listed for cracked and uncracked concrete applications - provides verified, compliant performance across a wide range of structural concrete conditions, including seismic loading environments.
• Made from zinc-plated carbon steel for use in dry interior environments - the zinc plating provides a corrosion-resistant finish suited to indoor mechanical, plumbing, and HVAC suspension work.

Why This Product

• Tested and code listed for demanding conditions - this threaded rod hanger carries code listings for both cracked and uncracked concrete, as well as seismic loading applications, giving contractors the documentation they need for inspections and peace of mind on critical installations.
• No secondary setting and no special tooling required - the anchor goes in with a standard rotary hammer or hammer drill and common ANSI drill bits, cutting down on labor time and eliminating the need for specialized installation equipment.
• Engineered load transfer through undercutting thread design - rather than relying solely on friction, the anchor mechanically engages the base material, delivering a secure connection when suspending pipes, cable trays, or HVAC equipment from concrete overhead.
• Purpose-built for a wide range of suspended MEP applications - whether supporting plumbing lines, electrical cable trays, or mechanical equipment from concrete slabs or concrete-over-metal decking, this anchor is specifically designed and approved for the job.

Specifications

• MPN: THDB25158RH
• Brand: Simpson Strong-Tie
• Material: Carbon Steel
• Coating/Finish: Zinc Plated
• Anchor Diameter: 1/4 in.
• Anchor Length: 1-5/8 in.
• Rod Size: 1/4 in.
• Bolt/Rod Diameter: 1/4 in.
• Drill Bit Size: 1/4 in.
• Wrench Size: 3/8 in.
• TPI: Variable
• Packaging: Packs of 100 and Cartons of 500

Approved Applications

• Suspending threaded rod from concrete slabs and beams
• Suspending threaded rod from concrete over metal
• Hanging pipes and plumbing lines
• Supporting cable trays
• Mounting and hanging HVAC equipment
• Cracked and uncracked concrete installations
• Seismic loading condition applications
• Dry interior environments

Frequently Asked Questions

What type of concrete applications is the Simpson THDB25158RH code listed for?

The Simpson Titen HD Threaded Rod Hanger is code listed for both cracked and uncracked concrete applications, and has been tested to offer industry-leading performance even in seismic loading conditions.

What tools are required to install the THDB25158RH?

The anchor is designed to install using a rotary hammer or hammer drill with standard ANSI drill bits - no special tools required. It also installs with standard-sized sockets using a 3/8 in. wrench.

What drill bit size is needed for the Simpson THDB25158RH?

A 1/4 in. drill bit is required for installation of the THDB25158RH Titen HD Threaded Rod Hanger.

Is the Simpson THDB25158RH suitable for outdoor or wet environments?

No. The THDB25158RH is made from zinc-plated carbon steel and is intended for use in dry interior environments only. It should not be used in outdoor, wet, or corrosive conditions.

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