Simpson RFB#3X4HDG 3/8" X 4" Retro-Fit Bolt - Hot Dip Galvanized
Simpson RFB#3X4HDG 3/8" X 4" Retro-Fit Bolt - Hot Dip Galvanized!
Specifications
The RFB Retrofit Bolt is a pre-cut threaded rod designed for anchoring into existing concrete and masonry structures. When used with Simpson Strong-Tie adhesives, it provides a reliable and robust anchoring solution for various construction applications.
Key Features:
- Pre-Cut Threaded Rod: Supplied with a nut and washer, ready for immediate installation.
- Material: Manufactured from ASTM F1554 Grade 36 steel, ensuring high strength and durability.
- Finish Options: Available in zinc-plated and hot-dip galvanized finishes to suit different environmental conditions.
- Identification Marks: Each end of the threaded rod (for diameters 1/2" and above) is stamped with the rod length in inches and the "No-Equal" symbol for easy identification after installation.
Applications:
- Ideal for retrofit projects requiring anchoring into existing concrete or masonry.
- Suitable for use with Simpson Strong-Tie adhesives to create a secure and dependable anchoring system.




Item works as described. They shipped them fast. Very pleased with the transaction.


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We are on a mission to expand our national reach—offering more product selection and faster delivery times. So far we’ve made remarkable progress in our expansion efforts, effectively doubling our capacity by adding a new 47,000 sq. ft. warehouse in Simpsonville, South Carolina, in addition to our existing 60,000 sq. ft. facility in Urbana, Iowa.
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