Constructed from durable AISI 1018 Steel, this square washer measures 2-1/4 inches by 2-1/4 inches and is designed specifically for use with 5/8 inch bolts. Its robust construction provides a wider bearing surface under the head of bolts and nuts, enhancing compression and stability for tightened connections. Additionally, the hot dip galvanized finish ensures compliance with ASTM Specification A153, offering reliable corrosion resistance for various aerial hardware and pole applications. This washer is an essential component for anyone needing dependable and efficient fastening solutions in demanding environments.