The Square Flat Washer from MacLean Senior Industries is engineered for exceptional durability and reliability in aerial applications. Crafted from high-quality steel, this washer features a hot-dip galvanized finish that adheres to ASTM A153 standards, ensuring robust corrosion resistance, with an optional thermal diffusion galvanized (TDG) finish available for even greater protection. Designed for use with 5/8" bolts, its dimensions of 2 x 2 x 1/8 inches and a hole diameter of 11/16 inches make it a versatile choice for various fastening needs. Each box contains 250 pieces, making it a practical solution for both contractors and maintenance professionals in the aerial hardware and poles sector.