Class 3, high-tensile fence wire. Heavy-duty galvanized, triple zinc-coated. Breaking strength of 170 to 200K PSI (pounds per square inch). Extra strength, long-lasting, corrosion and rust-resistant. Features a single strand design for use in pasture fencing, tying, or bundling. Designed for general fencing jobs, temporary fencing needs, and cost-efficient fencing. Meets ASTM-A-845 and ASTM-A-641. 12.5-gauge. 4000-feet. 1018 steel grade.