Simpson Strong-Tie RFB Retrofit Bolts

Simpson Strong-Tie extended lineup of RFB retrofit bolts with new diameters and additional lengths in Grade 36 rod, as well as Grade 55 and 105 and Stainless Steel 304 and 316. New diameter options include 3/8-inch, as well as shorter lengths for 1/2-inch, 5/8-inch, and ¾-inch diameter bolts. The line also includes 7/8-inch and 1-inch diameters in zinc-plated carbon steel.

These sizes are all available in multiple steel grades, each with its specific color coding to indicate the grade or type of steel for quick and easy identification.