Conquest 5/8" x 2-1/8" A563 Grade A Coupling Nut - Zinc | Qty. 4,500 (Pallet)The Conquest A563 Grade A Coupling Nuts in Zinc finish are designed to extend threaded rods and bolts in a variety of fastening applications. Whether you're working in general construction, equipment assembly, or structural fabrication, these durable nuts provide a stable, threaded connection you can trust. Made from carbon steel and zinc plated for added corrosion resistance, these coupling nuts deliver long term performance in indoor or dry