Product Description
Simpson RFB#4X4 RFB 1/2 in. x 4 in. Zinc-Plated Retrofit Bolt, Grade 36 is a Simpson Strong-Tie precut threaded rod supplied with a nut and washer, engineered for use with anchoring adhesives to anchor into existing concrete and masonry. Designed to provide both tension and shear load capacity in connections, this retrofit bolt delivers a complete engineered anchoring system when paired with a compatible Simpson Strong-Tie adhesive.
Key Features
- Provides both tension and shear loads in connections
- Coarse thread type for reliable engagement
- Each end of the threaded rod is stamped with rod length in inches for quick post-installation identification
- Color-coded to indicate the grade or type of steel for easy identification post-installation
- Stamped with the distinctive No-Equal symbol (for 1/2 in. diameters and larger)
- Zinc plated finish for corrosion resistance
- Supplied with nut and washer
- Made in the United States
Specifications
- MPN: RFB#4X4
- Brand: Simpson Strong-Tie
- Diameter: 1/2 in.
- Bolt Length: 4 in.
- Thread Type: Coarse
- Grade: Grade 36
- Finish: Zinc Plated
- Coating: 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#4X4 Retrofit Bolt, Precut threaded rod, Nut, Washer.
Frequently Asked Questions
- What is the Simpson RFB#4X4 used for?
- The Simpson Strong-Tie RFB retrofit bolt 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 loads in connections, forming a complete engineered anchoring system when used with a compatible Simpson Strong-Tie adhesive.
- What size is the RFB#4X4?
- The RFB#4X4 has a diameter of 1/2 in. and a bolt length of 4 in. It features a coarse thread type.
- How do you identify the RFB#4X4 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 for quick and easy identification post-installation. For 1/2 in. diameters and larger, the distinctive No-Equal symbol is also stamped on the rod.
- What adhesive should be used with the RFB#4X4?
- The RFB#4X4 is designed for use with Simpson Strong-Tie adhesives to anchor into existing concrete and masonry, creating a complete engineered anchoring system.
Note: Product dimensions and/or length may differ from picture. Please see the item description above for specifications.
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