Master Lock Magnum 1-7/8" Steel Keyed Alike Covered Padlock (3-Pack) superior security with its tough-cut octagonal boron-carbide shackle, which is 50% harder than hardened steel. The shackle measures 1-1/2" long by 13/16" wide and 5/16" deep, providing robust protection against cutting and sawing. This padlock features a Rust-Oleum body that resists rust, ensuring long-lasting durability. Its Dual-Armor construction combines a laminated steel core with a weather-resistant cover, shackle seals, and keyway cover to shield against snow, rain, dirt, mud, grime, and salt. Equipped with dual ball bearing locking, it maximum pry resistance, while the 4-pin cylinder enhances pick resistance. Backed by a lifetime , this lock is designed for reliable, heavy-duty use. Model Number: M115XTRILF