The Simpson 3/4 in. x 10 1/2 in. Hot-Dip Galvanized Retrofit Bolt is a precut threaded rod from Simpson, supplied with a nut and washer, engineered for anchoring into existing concrete and masonry using Simpson Strong-Tie adhesives. When paired with a compatible Simpson Strong-Tie adhesive, this retrofit bolt forms a complete engineered anchoring system capable of handling both tension and shear loads in structural connections - making it a reliable choice for retrofit and repair applications where dependable load transfer is essential.

Key Features

• Handles both tension and shear loads - delivers versatile structural performance in a single fastener, reducing the need for multiple hardware solutions in demanding connections.
• Coarse thread type - promotes strong mechanical interlock with anchoring adhesive for dependable load transfer into concrete and masonry substrates.
• End-stamped with rod length and color-coded by steel grade - enables quick, accurate identification after installation, saving time during inspection and verification.
• No-Equal symbol stamped on 1/2 in. diameter and larger bolts - provides an additional post-installation authentication mark for quality assurance on structural fasteners.
• Hot-dip galvanized finish - offers enhanced corrosion resistance suited to moisture-exposed or corrosive environments, helping extend the service life of the connection.
• Supplied complete with nut and washer - arrives ready to use with no need to source additional hardware, simplifying job site preparation.

Why This Product

• A complete, engineered anchoring solution - when used with Simpson Strong-Tie adhesives, this retrofit bolt delivers a fully engineered system for anchoring threaded rod into existing concrete and masonry, giving contractors and engineers a coordinated and tested approach to structural anchoring.
• Built for straightforward post-installation verification - the combination of stamped rod length and color-coded steel grade identification on each end of the rod means inspectors and installers can confirm the correct bolt is in place without guesswork, even after the anchor is set.
• Corrosion-resistant construction for demanding environments - the hot-dip galvanized finish provides a level of protection suited to projects where moisture or other corrosive conditions are a concern, supporting long-term connection integrity.
• Made in the United States by a trusted structural hardware brand - manufactured domestically under Simpson's quality standards, this retrofit bolt is backed by the engineering reputation of a brand widely specified for structural connections.

Specifications

• MPN: RFB#6X10.5HDG
• Brand: Simpson Strong-Tie
• Diameter: 3/4 in.
• Bolt Length: 10-1/2 in.
• Thread Type: Coarse
• Coating: Hot-Dip Galvanized
• Finish: Hot-Dip Galvanized
• Country of Origin: United States

Approved Applications

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

What's Included

Each pack contains (1) RFB#6X10.5HDG Hot-Dip Galvanized Retrofit Bolt, Precut threaded rod, Nut, Washer.

Frequently Asked Questions

What adhesive should be used with the RFB#6X10.5HDG retrofit bolt?

This retrofit bolt is designed for use with Simpson Strong-Tie adhesives to anchor into existing concrete and masonry. When used together, they form a complete engineered anchoring system.

How can the bolt be identified after installation?

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, enabling quick and easy identification post-installation. The No-Equal symbol is also stamped on bolts 1/2 in. diameter and larger.

What finish does the RFB#6X10.5HDG have, and why does it matter?

This retrofit bolt features a hot-dip galvanized finish, which provides enhanced corrosion resistance, making it suitable for use in environments where moisture or other corrosive conditions may be present.

What types of loads does this retrofit bolt support?

The RFB#6X10.5HDG provides both tension and shear loads in connections, making it a versatile choice for a variety of structural anchoring applications in existing concrete and masonry.

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