Engineered to prevent the crushing of wood fibers under load, these square curved washers are essential components for various aerial hardware applications. Crafted from cast ductile iron in compliance with ASTM A536, they provide robust durability and performance. Featuring a galvanized finish that meets ASTM A-153 standards, these washers are designed for longevity and resistance to corrosion. Measuring 3 inches square and 3/8 inch thick, they accommodate a 13/16-inch diameter hole suitable for a 3/4-inch diameter bolt, ensuring a secure fit in demanding environments. Manufactured in adherence to NEMA PH-10 specifications, they exemplify quality craftsmanship for reliable use in aerial line hardware systems.