Simpson Strong-Tie 5/8" x 16" RFB Retrofit Foundation Anchor Bolt - Zinc Decorative Gable Plates or (b) Slabs are poured

or (b) Slabs are poured over concrete block foundation walls

Ideal for Tension Applications: Perfect for suspension

or assembling custom wood structures

A stamped embedment line makes it easier to position each anchor at the correct depth during installation

helping you see more clearly when proper setting has taken place

Simpson Strong-Tie 5/8" x 16" RFB Retrofit Foundation Anchor Bolt - Zinc Decorative Gable Plates or (b) Slabs are pouredSimpson 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