Product Description
The Simpson 3/4 in. x 10-1/2 in. Zinc-Plated Retrofit Bolt is a precut threaded rod from Simpson, supplied with a nut and washer, and engineered for use with anchoring adhesives to secure connections into existing concrete and masonry. 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, so the bolt remains easy to identify after installation. The distinctive No-Equal symbol is also stamped on the rod for 1/2 in. diameters and larger. When paired with a compatible Simpson Strong-Tie adhesive, this retrofit anchor bolt delivers a complete engineered anchoring system built to handle demanding structural applications.
Key Features
- Handles both tension and shear loads - supports multi-directional forces in a single connection, reducing the need for supplemental hardware in structural anchoring applications
- Coarse thread type - promotes strong mechanical interlock with anchoring adhesive, helping to maximize load transfer into existing concrete and masonry
- 3/4 in. diameter x 10-1/2 in. length - sized for deeper embedment in heavy-duty anchoring scenarios where smaller diameters would be insufficient
- Zinc-plated finish - provides a corrosion-resistant surface coating suitable for protected interior and general construction environments
- End-stamped with length and color-coded grade marking - enables quick, reliable identification of the installed bolt's size and steel grade without removing the fastener
- Supplied with nut and washer included - arrives ready for use with no need to source additional components before installation
Why This Product
- A complete adhesive anchoring solution in one package - the precut threaded rod, nut, and washer combine with any compatible Simpson Strong-Tie adhesive to form a fully engineered anchoring system, simplifying procurement and installation planning for concrete and masonry retrofit work
- Built-in post-installation identification - the length stamp and color-coded grade marking on each end of the rod allow inspectors and installers to confirm bolt specifications after the anchor is set, supporting quality control without disrupting the installation
- Dual-load capacity for versatile structural use - because the bolt resists both tension and shear forces, it is well suited for a wide range of anchoring connections in existing concrete and masonry, from structural attachments to equipment anchorage
- American-made Grade 36 steel construction - the use of Grade 36 steel provides a defined, consistent strength baseline that contractors and engineers can reference when designing or specifying adhesive anchor connections
Specifications
- MPN: RFB#6X10.5
- Brand: Simpson Strong-Tie
- Diameter: 3/4 in.
- Bolt Length: 10-1/2 in.
- Thread Type: Coarse
- Grade: Grade 36
- Coating: Zinc Plated
- Finish: Zinc Plated
- Country of Origin: United States
Approved Applications
- Anchoring into existing concrete using Simpson Strong-Tie adhesives
- Anchoring into existing masonry using Simpson Strong-Tie adhesives
- Connections requiring both tension and shear load resistance
What's Included
Each pack contains (1) RFB#6X10.5 Retrofit Bolt, Pre-cut threaded rod (3/4 in. x 10-1/2 in.), Nut, Washer.
Note: Product dimensions and/or length may differ from picture. Please see the item description above for specifications.
Frequently Asked Questions
What adhesive should be used with the Simpson RFB#6X10.5 Retrofit Bolt?
The RFB#6X10.5 is designed for use with Simpson Strong-Tie adhesives. When combined with a compatible Simpson Strong-Tie adhesive, the RFB provides a complete engineered anchoring system for use in existing concrete and masonry.
How do I identify the grade and length of the bolt 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. Additionally, the distinctive No-Equal symbol is stamped on the rod for 1/2 in. diameters and larger.
What types of loads does the RFB#6X10.5 support?
The Simpson RFB#6X10.5 Retrofit Bolt provides both tension and shear loads in connections, making it suitable for structural anchoring applications in existing concrete and masonry.
Does the RFB#6X10.5 come with a nut and washer?
Yes. The RFB#6X10.5 is supplied as a pre-cut threaded rod complete with a nut and washer, providing everything needed for a ready-to-install anchoring assembly.
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