Simpson RFB#5X5 RFB 5/8 in. x 5 in. Zinc-Plated Retrofit Bolt, Grade 36 is a precision-engineered anchoring component from Simpson Strong-Tie, designed to anchor into existing concrete and masonry when used with Simpson Strong-Tie anchoring adhesives. As a precut threaded rod supplied with a nut and washer, this retrofit bolt delivers a complete engineered anchoring system capable of handling both tension and shear loads in structural connections. Each end of the threaded rod is stamped with the rod length in inches and color-coded to indicate the grade or type of steel, enabling quick and easy identification post-installation. For diameters of 1/2 in. and larger - including this 5/8 in. model - Simpson Strong-Tie's distinctive No-Equal symbol is also stamped on the rod.

Key Features

• Provides both tension and shear loads in connections
• Coarse thread type for reliable engagement with anchoring adhesives
• Diameter: 5/8 in.
• Bolt length: 5 in.
• Washer included
• Zinc plated finish for corrosion resistance
• Each end stamped with rod length in inches and color-coded by grade or steel type for easy post-installation identification
• No-Equal symbol stamped on rod (available on 1/2 in. diameter and larger)
• When used with a Simpson Strong-Tie adhesive, forms a complete engineered anchoring system
• Made in the United States

Specifications

• MPN: RFB#5X5
• Brand: Simpson Strong-Tie
• Diameter: 5/8 in.
• Bolt Length: 5 in.
• Thread Type: Coarse
• Grade: Grade 36
• Coating: Zinc Plated
• Finish: Zinc Plated
• Country of Origin: United States

Approved Applications

• Anchoring into existing concrete when used with Simpson Strong-Tie anchoring adhesives
• Anchoring into existing masonry when used with Simpson Strong-Tie anchoring adhesives
• Structural connections requiring both tension and shear load resistance

What's Included

Each pack contains (1) RFB#5X5 Retrofit Bolt, Precut threaded rod (5/8 in. x 5 in.), Nut, Washer.

Frequently Asked Questions

What is the Simpson RFB#5X5 retrofit bolt used for?

The Simpson Strong-Tie RFB#5X5 is a precut threaded rod used with anchoring adhesives to anchor into existing concrete and masonry. It is designed to provide both tension and shear load resistance in structural connections, making it suitable for a wide range of retrofit anchoring applications.

Does the RFB#5X5 come with a nut and washer?

Yes. The RFB#5X5 is supplied as a complete unit that includes the precut threaded rod, a nut, and a washer, providing everything needed to complete the anchoring connection alongside the appropriate Simpson Strong-Tie adhesive.

How can I identify the RFB#5X5 after it has been installed?

Each end of the threaded rod is stamped with the rod length in inches and is color-coded to indicate the grade or type of steel, allowing for quick and easy identification post-installation. Because this bolt is 5/8 in. in diameter - 1/2 in. or larger - it also features Simpson Strong-Tie's distinctive No-Equal symbol stamped on the rod.

What adhesive should be used with the Simpson RFB#5X5 retrofit bolt?

The RFB#5X5 should be used with Simpson Strong-Tie adhesives to anchor into existing concrete and masonry. When paired with a compatible Simpson Strong-Tie adhesive, the RFB retrofit bolt delivers a complete engineered anchoring system.

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