The Simpson ATR All-Thread Rod 1-1/4 in. x 12 in. Zinc-Plated Steel Fully Threaded is a coated tension transfer element from Simpson engineered for use with Simpson Strong-Tie adhesives in structural anchoring applications. Fully threaded along its entire length, this zinc-plated steel all-thread rod is built for floor-to-floor holdown assemblies and a wide range of other demanding anchoring solutions where consistent thread engagement and adaptability are critical.

Key Features

• Fully threaded along the entire length - provides consistent thread engagement from end to end, giving installers maximum flexibility in positioning and depth without dead zones.
• Cut to length for convenience - the rod can be trimmed to meet specific project dimensions, reducing waste and eliminating the need to source custom-length hardware separately.
• 1-1/4 in. diameter - sized for high-load structural applications such as floor-to-floor holdown assemblies where a robust tension transfer element is required.
• Zinc-plated steel construction - delivers a protective finish over solid steel, suitable for use in the dry or controlled-exposure conditions typical of structural framing applications.
• UNC Class 2A or 1A thread specifications - conforms to recognized industry thread standards, ensuring reliable compatibility with corresponding nuts, couplers, and hardware used in Simpson Strong-Tie anchoring systems.

Why This Product

• Engineered as a dedicated tension transfer element - the coated ATR is specifically designed for use with Simpson Strong-Tie adhesives, making it a purpose-built component rather than a generic threaded rod, which matters when structural performance and system compatibility are required.
• Full threading means true versatility - because the rod is threaded along its complete 12 in. length, it can be anchored, coupled, or trimmed at virtually any point, adapting to floor-to-floor holdown layouts and a broad range of anchoring configurations without compromise.
• Cut-to-length convenience reduces on-site waste - rather than working around a fixed length, installers can size the rod to exact project requirements, streamlining installation and keeping material costs in check.
• Made in the United States to recognized thread standards - domestic production combined with UNC Class 2A or 1A thread compliance gives contractors confidence in dimensional consistency and quality across every rod.

Specifications

• Model Number: ATR1-1/4X12ZP
• Diameter: 1-1/4 in.
• Length: 12 in.
• Material: Steel
• Coating / Finish: Zinc Plated
• Thread Type: UNC Class 2A or 1A
• Threading: Fully threaded
• Country of Origin: United States

Approved Applications

• Floor-to-floor holdown assemblies
• Use with Simpson Strong-Tie adhesives for anchoring solutions
• Structural tension transfer applications
• Wide range of general anchoring solutions requiring fully threaded rod

Frequently Asked Questions

What type of threading does the ATR1-1/4X12ZP feature?

This all-thread rod is fully threaded along its entire length and conforms to UNC Class 2A or 1A thread specifications, providing consistent engagement across the full 12-inch length.

What finish is applied to this all-thread rod?

The ATR1-1/4X12ZP features a zinc-plated finish applied over steel construction. Simpson Strong-Tie also offers ATR rods in a hot-dipped galvanized finish for applications requiring a different level of corrosion protection.

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

The coated ATR is specifically designed for use as a tension transfer element in conjunction with Simpson Strong-Tie adhesives, and is suitable for floor-to-floor holdown applications as well as a wide range of other structural anchoring solutions.

Can this rod be cut to a shorter length?

Yes. The ATR1-1/4X12ZP is designed to be cut to length for convenience, making it adaptable to specific project requirements without sacrificing thread integrity along the cut portion.

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