Simpson Strong-Tie RFB#4X8-55 RFB 1/2 in. x 8 in. Zinc-Plated Retrofit Bolt, Grade 55 MULT 4 Versatile Usage: Perfectly suited for

Versatile Usage: Perfectly suited for a variety of materials

or undertaking general woodworking projects

Patented Thread Design: Ensures quick and successful installation across various masonry substrates

giving you exact hole diameters for dowels

providing superior grip that keeps your roofing material securely in place

Simpson Strong-Tie RFB#4X8-55 RFB 1/2 in. x 8 in. Zinc-Plated Retrofit Bolt, Grade 55 MULT 4 Versatile Usage: Perfectly suited forSimpson Strong Tie RFB#4X8 55 The Simpson Strong Tie RFB retrofit bolt is a precut threaded rod, supplied with nut and washer, to use with anchoring adhesives to anchor into existing concrete and masonry. Each end of the threaded rod is stamped with rod length in inches and color coded indicating the grade or type of steel for quick and easy identification post installation. For 1 2 in. diameters and larger, the distinctive No Equal symbol is also