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Simpson Strong-Tie Expands Concrete Retrofit Bolt Lineup
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2026-03-04
U.S. structural fastening leader Simpson Strong-Tie is expanding its RFB retrofit bolt series with new diameters and lengths in Grade 36 rod, plus new Grade 55, 105, and Stainless Steel 304/316 options. These precut, precleaned threaded rods come fully assembled with nut and washer, pairing seamlessly with anchoring adhesives for quick anchoring into existing concrete and masonry, saving significant jobsite time. RFBs stand out with clear dual-end markings: length stamped in inches (for 1/2" diameters and up) and color-coding by steel grade for easy identification. Paired with Simpson adhesives, they form a complete engineered system.
Associate Product Manager Jerry Miller stated: "Field engineers struggling to verify post-install specs will appreciate our stamped and color-coded RFBs for time savings and peace of mind in inspection. The expanded line now offers greater versatility, including 3/8" diameter, shorter lengths for 1/2"-3/4" bolts, and 7/8"-1" zinc-plated carbon steel to meet diverse capacity needs."
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