Simpson ATR 5/8 in. x 24 in. Hot-Dip Galvanized All-Thread Rod is a fully threaded steel rod engineered by Simpson as a tension transfer element for use with Simpson adhesives. Designed to handle demanding structural tasks - including floor-to-floor holdowns and a broad range of anchoring applications - this all-thread rod pairs a hot-dip galvanized finish with full-length threading to deliver reliable performance where corrosion resistance and installation flexibility matter most.

Key Features

• Fully threaded along the entire length - provides maximum versatility for structural configurations, letting you position nuts and connectors anywhere along the rod without limitations
• Cut to length for convenience - allows the rod to be trimmed on-site to fit the exact requirements of your holdown or anchoring application, reducing material waste and installation time
• Hot-dip galvanized coating - delivers extra corrosion resistance beyond standard zinc-plated finishes, making this rod a dependable choice for exterior environments and treated-wood applications where moisture or chemical exposure is a concern
• UNC Class 2A or 1A thread specifications - ensures compatibility with standard hardware and fasteners, supporting straightforward pairing with matching nuts and connectors
• Steel construction - provides the structural strength needed for tension transfer applications and load-bearing anchoring solutions

Why This Product

• Built for corrosive environments - the hot-dip galvanization process provides a thicker, more durable protective layer than zinc-plated alternatives, making this threaded rod the right call for treated-wood framing, exterior decks, and other moisture-exposed installations
• Versatile by design - fully threaded from end to end and cuttable to length, this all-thread rod adapts to floor-to-floor holdowns, adhesive anchor assemblies, and a wide variety of other structural connections without requiring special-order lengths
• Engineered as part of a complete system - designed specifically for use with Simpson adhesives as a tension transfer element, this rod is intended to work within a coordinated anchoring system rather than as a standalone generic fastener
• American-made steel - manufactured domestically from steel, supporting project specifications that require traceable, quality-controlled materials for structural and code-sensitive applications

Specifications

• Model Number: ATR5/8X24HDG
• Brand: Simpson Strong-Tie
• Material: Steel
• Coating: Hot-Dip Galvanized
• Finish: Hot-Dip Galvanized
• Diameter: 5/8 in.
• Length: 24 in.
• Thread Type: UNC Class 2A or 1A
• Country of Origin: United States

Frequently Asked Questions

What is this all-thread rod designed to be used with?

This ATR all-thread rod is a tension transfer element designed for use with Simpson Strong-Tie adhesives. It is suited for structural applications including floor-to-floor holdowns and a wide range of other anchoring solutions.

Why choose hot-dip galvanized over zinc-plated for this rod?

Hot-dip galvanization (HDG) provides extra corrosion resistance compared to standard zinc-plated finishes, making the HDG version the preferred choice for exterior and treated-wood applications where moisture or chemical exposure is a concern.

Is the rod fully threaded along its entire length?

Yes, this rod is fully threaded along its entire 24 in. length, providing versatility for a variety of structural configurations and allowing it to be cut to length for convenience.

What thread specification does this rod use?

This all-thread rod is manufactured to UNC Class 2A or 1A thread specifications. When pairing a nut with this threaded rod, the material and finish must match to ensure proper fit.

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