He Master Lock No. 576DLHPF solid body padlock features a 1-3/4 inch (44 mm) wide solid brass lock body that is strong, durable and resists corrosion. The 5/16 inch (8 mm) diameter shackle is 2 inch (51 mm) long and made of hardened steel, offering extra resistance to cutting and sawing. The 5-pin cylinder prevents picking and the dual locking ball bearings provide maximum protection against prying and hammering. The limited lifetime warranty provides peace of mind from a brand you can trust.