Simpson Strong-Tie 5/8" x 16" RFB Retrofit Foundation Anchor Bolt - Hot Dip Galvanized Flat Head 410 Stainless Steel Concrete Screws the LSTHD8 is built for

the LSTHD8 is built for long-term performance in both residential and light commercial projects

Zinc-Plated for Durability: Corrosion-resistant finish for dry

code compliance

finished look while boosting structural stability

Multi-family or light-gauge steel framing projects

Simpson Strong-Tie 5/8" x 16" RFB Retrofit Foundation Anchor Bolt - Hot Dip Galvanized Flat Head 410 Stainless Steel Concrete Screws the LSTHD8 is built forSimpson Strong Tie RFB Retrofit Foundation Bolts provide a reliable solution for anchoring wood sill plates to existing concrete foundations. Unlike traditional L bolts or J bolts that are embedded before concrete is poured, these retrofit anchor bolts are installed into cured concrete, making them ideal for foundation upgrades, repairs, and retrofit applications. Designed for use with Simpson Strong Tie anchoring adhesives, the RFB anchor bolt